In a team of 90-100 young men, you're always going to have a few who are unhappy about their (lack of) playing time, poor grades, girl trouble, etc.; but what we saw in the 2015 team was truly dysfunctional. Obviously Stoops is ultimately responsible for this, and I hate to call Towles and Phillips bad apples, but hopefully the malcontents will decide on their own they need to move on. If I'm Stoops, I would pretty much challenge anybody who's not "all in" to do just that.
Finally, at the risk of being all sappy and sentimental, hopefully the hiring of Gran (and Hinshaw?) will bring the team together.