Here's the thing - the mistakes you're seeing - those are exactly the mistakes teams make when they are playing with new people every week, which we are, at least on offence.
As for Lapo's play calling - it looks like we aren't even sound on the basics, so adding MORE creativity will only make things worse. What can he do besides the most vanilla stuff, when even at that there are mistakes? We've got people we cut in TC that we are now expecting to lead us. Not just play a role, but lead us. I read somewhere where one of the coaches said our offence is at about training camp level in terms the amount of the system we are actually using.
As for the QB thing, I was of a similar mind as many - pulling MB against BC was weird, leaving him in against Mtl also weird, but it was either Suitor or one of the panelists who said with what we've got available, there's no point playing DD as it would just wreck him. That makes some sense.
We were extremely lucky in weeks 1-6 in terms of getting the breaks needed to win games. Evertything that had to happen did. Now, we're playing with less ability, and we're not getting those breaks, and losses are the inevitable result.