While I have been on the switch to Buchner band wagon I will say that they all will have struggles. The line seems to not look as bad when we have a QB in who can shift the pocket or roll out quickly which Coan clearly can't do. However, I am seeing a lot of routes where the receievers are not getting open or good separation. If Coan is going to be the guy then play calling has to change to a quick passing game. If he holds it longer then two seconds he is going to get hit. While I will concede he holds the ball to much you also have to admit the play calling is not getting the ball out quick enough.
I am for going to one of the young guys purely to get their experience level up. If some how BK gets 10 wins this season then it would be a heck of a job between the roster turnover, new D system, and a tough schedule.