So what's the back story here?
Obviously a coaching change can spur transfers, that makes sense. Especially for recruits, when the coach that recruited them is fired or chooses to leave to go somewhere else they might leave to follow that coach (or in this WR case, maybe go to their 2nd-choice school instead). And I can understand leaving UW to go to USC with their new coaching staff getting a lot of hype... But leaving UW to go to Chip Kelly at UCLA? With rumblings about his future there? Especially if you're already a starter or presumptive starter at UW? UCLA seems like jumping off the Titanic and landing on the Lusitania.
I don't even remember the name of UW's departing coach, and I don't know anything about DeBoer and his system... So maybe it's a style-of-play thing where the transfers out believe they don't have a spot in DeBoer's system? But I've never heard anything bad about DeBoer, and would find it odd if a new incoming coach just started rubbing half the starting lineup in completely the wrong way and lost the locker room before he'd ever coached a down. So I can't see why starters / presumptive starters would jump ship...