Pettine seems to be done with Manziel, but are the Browns?

With Josh McCown injured and Austin Davis getting the nod on Sunday over Johnny Manziel, it’s increasingly clear that Browns coach Mike Pettine has permanently lost the ability to trust Manziel as the starter. The broader question is whether the Browns, too, are done with Manziel, if the Browns end up being done with Pettine.…