I do not think Shamet will play much PG.
Also, it's important to note that in 'all else being equal' with regard to figuring out how to get better or replace certain players, WSU is doing so from the perspective of a 4 game cushion. That's a significant point when some folks are already counting on everyone on their squad showing great improvement and everyone on WSU's squad not panning out. And I think it's enough to make folks 'posturing' that WSU is the favorite to be striking a pretty good pose.
I do agree that the race will be much tighter this year. I'd guess 14 wins might get it, though that makes things like ties much more likely.