In case you missed it, ESPN Insider Field Yates put together a rundown Tuesday of the most significant roster holes remaining after teams completed the first wave of free agency.

No surprise here that Yates thinks the Bears need to add at least one more receiver, because they do; even after reuniting former Chargers and Broncos receiver Eddie Royal with quarterback Jay Cutler. New general manager Ryan Pace sent receiver Brandon Marshall and a seventh-round pick to the New York Jets in exchange for a fifth-round selection.

Obviously, Marshall is only one player. But he served as Chicago’s No. 1 receiver opposite Alshon Jeffery. Since coming into the league, Marshall ranks No. 3 in receptions (773), fifth in receiving touchdowns (65) and sixth in receiving yardage (9,771). So Pace left a huge hole in the roster at the receiver position by jettisoning Marshall, and it’s important to note Jeffery is coming up on the final year of his original rookie contract.

So while Royal is coming off his most productive season in three years with the Chargers (778 yards and seven touchdowns), playing in a full 16-game season for the first time since 2010, he spent the majority of his time in San Diego operating out of the slot.

The Bears need production on the outside opposite Jeffery, and the reality is it will be difficult to find a player at that position even close to Marshall’s caliber. We outlined a few of the team’s potential options in the draft at receiver here.

The Bears own the No. 7 overall pick of the draft.

“I would say the receiver position, we are looking at that,” Pace said. “We are exploring that in free agency, in the draft,” Pace said. “There are guys, honestly, on our own roster that we could see have ascending roles. We’ll add talent to our entire roster. But, yeah, we are looking at receivers.”

Pace never indicated which receivers on the current roster will assume those roles, saying “I don’t want to get on an individual basis on every player on the roster.” But the logical choice to put into Marshall’s position would be third-year receiver Marquess Wilson, who started six games last season, finishing with 17 catches for 140 yards and a touchdown.

He’ll need to make major progress this offseason for the Bears to feel comfortable with moving him into the starting lineup.

The club lists Wilson at 6-foot-4 and 184 pounds, but he’ll need to add some bulk in the team’s conditioning program as he’s not considered a speedster capable of blowing past corners at the line of scrimmage. The club held out high hopes for Wilson headed into last season, but the receiver suffered a fractured clavicle diving for a deep ball at training camp and spent the first nine games of last season on injured reserve.

“We’re building this thing going forward,” said Pace, when asked how Marshall’s departure might affect the locker room. “We have a lot of time, guys. Free agency’s occurring as we’re speaking. We have the draft going forward, as we’re speaking. So we have a lot of time to continue to build the roster and build the chemistry and build the locker room. So to speak exactly on how [the Marshall trade] changes the locker room, I’m not too sure about that.”