As the weather heats up and spring ball begins around Big 12 country, there are plenty of players whose grip on the starting job isn't as tight as they'd like.
Guys like David Ash and Clint Trickett haven't lived up to expectations, while others like Terrell Burt and Jake Waters have guys nipping at their heels for the starting job.
The spring season gives everybody up and down the roster new opportunities to prove themselves. But for the starters, all that means is that he has guys gunning for his job, and the spring is simply another test he must pass.
With that, check out six starters around the Big 12 that are on the hot seat this spring.