Even though there has been some tweaking of the personnel, the biggest change for the Dallas Cowboys offense this season comes at the offensive coordinator position, where Kellen Moore has taken over for Scott Linehan.

One of the major storylines throughout the offseason, into training camp and through the preseason has been the changes that Moore is going to bring to the Cowboys offense. Don't expect these to be wholesale, as Jason Garrett is still the head coach and the offense is still running under his overarching philosophy.

However, through the training camp practices, it became readily apparent that Moore will certainly add his own flavor to certain aspects while tinkering with the way things are presented in other aspects of the offense, which — in theory — should lead to a more efficient and effective offense as a whole in 2019.

With that being said, let's dive into the players who stand to benefit most this season from the change in offensive coordinator.

Dak Prescott

Let's start with the obvious first, as Dak Prescott should benefit more than anyone with his former teammate and QB coach Kellen Moore as the offensive coordinator.

Prescott's first NFL offensive coordinator, Scott Linehan, wasn't as bad as most fans think, but it was clear and obvious that his offense wasn't efficient and often made life tougher on the team's personnel, especially when there was a lack of talent at receiver and tight end.

Linehan's offense was littered with isolation routes, which aren't a bad idea when your WR group is more talented than the opposing secondary; however, it's a terrible strategy when your team's franchise tight end retired and the team is without a legit No. 1 receiver, as it was the first eight weeks of last season.

Linehan ideology as a play-caller often appeared to be some semblance of "we are going to do what we do well, see if you can stop it," which is why the Cowboys have had one of the most predictable offenses in the NFL.

Linehan failed to make life easy on his young quarterback - which, when combined with the offensive line's leaky habits in 2018, often caused the offense to stall for large portions of games, especially before Amari Cooper arrived.

If there was anything made apparent in training camp this year, it's that Moore is going to do whatever he can to make life easier on his franchise quarterback.

One of the ways Moore is going to accomplish this is using plenty of shifts and pre-snap motion to make the offense more unpredictable, create confusion for the defense, identify coverages and create favorable matchups for the offense. During camp, the offense worked a lot of lining up in one formation before shifting into an entirely new one — which, as one can imagine, is incredibly stressful on the defense.

Another way Moore is going to make life easier on Prescott is an increased usage of rub, or pick, routes, which are used to create separation and get receivers open versus tight-man coverage.

It's not like the Cowboys didn't have rub routes in the playbook under Linehan, they just weren't called much, as Linehan preferred to target a player like Cole Beasley on an isolated pivot route in high leverage situations where tight-man coverage is more likely. During camp, there was a noticeable uptick in the use of rub routes, which should make Prescott's life easier when attacking man coverage in those situations.

Another way the offense should become more efficient is with increased usage in play-action passes.

In 2018, Prescott saw his yards-per-attempt improve two full yards when throwing off play-action (8.9) compared to without play-action (6.9), per Pro Football Focus. Moreover, despite targeting passes further down the field (which typically have lower completion rates), Prescott completion percentage actually improved as well when using play-action, which illustrates just how much of a net-positive play-action was for the Cowboys offense.

Despite this, Prescott finished in the middle of the pack in terms of play-action usage, using it on 24.9% of his dropbacks (10th out of 20 qualifying QBs with at least 110 play-action passes, per PFF). Expect to see that increase under Moore, as the Cowboys offense used a great deal of backfield deception throughout camp.

It's still much too early to make a definitive judgment on Moore's offense, but the early signs are certainly positive, especially in regards to Prescott, who should benefit greatly by Moore's tinkering with the Cowboys offense.

Tony Pollard

Another player who stands to benefit from Moore as offensive coordinator is rookie running back Tony Pollard.

Let's just ignore the potential of Ezekiel Elliott's holdout bleeding into the regular season, as it's obvious that Pollard would be used heavily in that situation regardless of who the offensive coordinator is.

Therefore, let's dive into Pollard's potential role if/when Elliott returns to the offense (which seems like it could be soon). Even though Pollard has been a revelation throughout camp and the preseason, everyone knows that Elliott is getting the lion's share of touches upon his return, which makes sense given he's a top-3 RB in the league.

Under Linehan, this likely would have caused Pollard to be a forgotten man on the Cowboys offense, as he would probably only get used on the few occasions where Elliott needed a breather.

Under Moore, on the other hand, it appears as though Pollard has carved a role in this offense even when Elliott returns. Throughout camp, Moore has experimented a lot with true-two running back sets, which just means sets where the offense is using two traditional running backs instead of having a fullback as the second back in the formation.

During camp, this meant Alfred Morris and Pollard were on the field together, but in the regular season, it means that Elliott and Morris will share the field, opening up almost limitless options for the Cowboys to attack defenses.

Zeke loves to block pic.twitter.com/aYT3l2V65j — Lance Zierlein (@LanceZierlein) November 28, 2015

Both Elliott and Pollard ran these types of sets in college a ton and were incredibly effective. Both running backs were effective lead blockers in two-back sets in college (Example: Pollard, Elliott) which means that defenses have to respect the ability of both backs to run or block on a given play, which makes it difficult to key into what Dallas is going to do pre-snap.

Because of his versatile skill set, Moore doesn't even have to ask Pollard to align in the backfield, as the Memphis product has a lot of experience detached from the formation as a receiver - to the point where he was arguably more of a receiver than running back at times during college.

This enables the Cowboys to create mismatches with Pollard against linebackers in coverage. Pollard is simply too skilled and athletic for most linebackers to hang with in coverage, which means he should be able to create separation and easy throwing windows for Prescott in those situations. Furthermore, if a teams opt to cover Pollard with a cornerback or safety, the Cowboys can look to get Pollard the ball quick (bubble or tunnel screens), forcing the defensive backs to bring down Pollard in the open field, which should be a big mismatch for the Cowboys.

Overall, having Moore as the new offensive coordinator should keep Pollard from getting lost in the sauce upon Elliott's return, as he's explored a numerous avenue toward getting Pollard the ball in situations where Elliott would be on the field. While he (obviously) won't be the bell cow of the offense, 8-12 touches per game, including special teams, seems likely for the rookie running back.

Jamize Olawale

During his tenure as head coach, Jason Garrett has made it apparent that he values fullbacks, and during a time where most teams are doing away with the position, the Cowboys have remained steadfast in including a fullback on the 53-man roster through Garrett's tenure.

The Cowboys have kept doing this despite not using a fullback very much on offense. In 2018, Olawale appeared in just 130 offensive snaps in 18 games (includes the playoffs) - 7.2 offensive snaps per game - meaning that Olawale played fewer offensive snaps than every other offensive player who was active for at least eight games, per PFF. In fact, Olawale received more than twice as many snaps on special teams (297, per PFF) than he did on offense.

Just for comparison's sake, Deonte Thompson, who was released in November, 169 offensive snaps during the eight games he's was active, which is 39 more than Olawale, who played in 11 more games.

It's not like Olawale is going to all of the sudden become a main cog in the Cowboys offense with Moore as the offensive coordinator, but he should certainly play a bigger part in the offense than he did under Linehan.

Olawale ran by Joe Thomas but ball was overthrown. #Cowboys pic.twitter.com/zymB2QZsKv — John Owning (@JohnOwning) August 2, 2019

As the team got deeper and deeper into camp, Moore began to showcase new layers of the Cowboys offense, which included the offense using Olawale as a runner and receiver. Even though he's a fullback, Olawale is one of the more athletic players on the Cowboys roster, watch him run by Joe Thomas in the above clip, which is why Moore is looking to use Olawale more, especially in the passing game.

Dak to Olawale in the back corner of the EZ pic.twitter.com/YipCZfmDfh — John Owning (@JohnOwning) August 12, 2019

One wrinkle the Cowboys continually worked on throughout camp was sending Olawale on wheel routes, where he can run away and create separation from slower-footed linebacker deep down the sideline.

All in all, it's clear, even though Olawale won't become a major cog in the Cowboys offense, he should be utilized at a much higher rate under Moore, which is why he is one of the player's who benefits most from the new offensive coordinator.

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Twitter: @JohnOwning