Jalin has been hurt/playing through an injury since the 1st quarter of the Pitt game. He was our leading WR against BG, btw. And if he doesn't have someone come down on top of him at Pitt, he likely catches that long ball, and leads us in receiving yards that game too. He didn't play much at Florida for whatever reason, but he took himself after a deep ball was underthrown late in the game and didn't come back in, so that leads me to believe he still wasn't 100% healthy. I didn't see him get much playing time vs Mizzu either.
Overall, I'd say injuries as well early season drops have also allowed for other guys step up, namely Cedric Tillman. I would expect Hyatt to get back into the fold pretty quickly though as he continues to get back to 100%.