Despite Blake Sims’ record-setting senior season as Alabama’s starting quarterback, there are still questions about his viability as an NFL passer. From his stature to his passing ability, all 32 NFL teams found a reason to pass on him in last week’s NFL draft.

The Green Bay Packers brought Sims in after the draft for their rookie minicamp, one of 25 players to invited to try out for the team. So far, he’s impressed Packers coach Mike McCarthy.

“Blake did some nice things today,” McCarthy told PackersNews.com on Saturday. “He made some throws. Definitely an understand (sic) from day one to day two, he increased there. He’s instinctive, has a bounce in his step. I thought he did some nice things today.”

Thanks to his athleticism — Sims ran a 4.57-second 40-yard dash at the scouting combine in February while also recording the highest vertical leap of any quarterback tested — and his experience as a running back, there’s a thought that Sims could find a way to stick in the league at a position other than quarterback. After all, there aren’t many 5-foot-11 quarterbacks in the NFL. Sims does own Alabama’s single-season passing record with his 3,487 yards in 2014, so there’s some empirical evidence that his height doesn’t hurt his game.

McCarthy didn’t rule out the possibility of Sims moving to another position with the Packers.

“That’s something that’s been thrown around,” McCarthy told PackersNews.

According to the report, the Packers only have room to sign two of the 25 tryout players invited to the rookie camp.