Auburn's offense faced several questions entering spring practice and it enters the offseason with even more.

Injuries had a large part to do with this, as receivers Eli Stove and Will Hastings each tore anterior cruciate ligaments and center Kaleb Kim and Nick Brahms missed time due to an ankle sprain and broken leg, respectively.

Quarterback Jarrett Stidham was limited to 7-on-7 and 1-on-1 passing drills and leading receiver Ryan Davis also missed significant time, both due to offseason shoulder surgeries.

Offensive coordinator Chip Lindsay said the overall goal for spring was for all the players to have an understanding of the base offense.

"We just want all our guys to have an understanding of the offense, and that's even more so now because of the situation we're in with some guys missing and banged up," Lindsay said. "I think for us, we've got to continue to make sure that we teach the fundamentals of the offense in detail and hopefully when the guys do their own work this summer, they'll build off that and then we'll get into fall."

Here are five questions facing Auburn's offense entering the offseason:

1. How much clearer is the running back picture?

Kam Martin didn't play on A-Day but the coaches know what he brings to the table. The junior appears to be the leader in the backfield, but with how reluctant Gus Malzahn was to use Martin in meaningful spots and in pass protection last season the starting job is still likely open.

JaTarvious Whitlow clearly helped himself this spring and should be no worse than third, if not second, on the depth chart and vie for a major role in the fall. Devan Barrett already saw time as a receiver last season so it's not much of an adjustment for him to take on the role of Stove and still contribute in the backfield.

With Martin out Malik Miller opened A-Day with the first-team offense but had just three carries for two years and a fumble. That can't bode well for his chances of competing for the job.

RELATED: Assessing Auburn's running back competition after A-Day

In any other year expecting freshmen to contribute with as much depth as Auburn has might be ridiculous but Asa Martin and Harold Joiner might very well have a chance to work into roles.

2. Who will be the starting center?

The competition wouldn't have ended after spring regardless but the injuries to Kim and Brahms halted the position battle for some time.

Tucker Brown is not out of the mix either, so Auburn has options but still has a ways to go in determining who will take over.

3. Will Austin Troxell or Calvin Ashley start at right tackle or will a graduate transfer come in?

Troxell gained significant ground in the spring while Ashley slipped a bit. Both redshirt-freshmen have much work to do though and whether Auburn will start a tackle with no game experience or ultimately pursue a graduate transfer remains to be seen. If that does happen, Prince Tega Wanogho Jr. could stay on the left side or move to right tackle.

4. Who takes over for Will Hastings in the slot?

Barrett was a natural replacement to Stove at flanker and could see some time in the slot, but Hastings offered Auburn a unique skill set. Given that the slot is usually a faster player, signee Anthony Schwartz is most likely going to get the first chance. Who ultimately is the first man up in that spot on Sept. 1 is wide open though.

5. What will the identity of the offense end up being?

With Stidham out the overall offensive plan was less a focus in the spring, but that changes as the season draws closer. Even with Kerryon Johnson, Auburn averaged more passing yards than rushing yards per game last season. With an ongoing competition at running back, Auburn would seemingly be in line to be even more passing oriented this fall. Malzahn has stressed Auburn's "run, play-action" identity and that doesn't necessarily preclude more passing, just that it may be tweaked more this season than in years past.

James Crepea is an Auburn beat reporter for Alabama Media Group. Follow him on Twitter @JamesCrepea.