I'm very impressed with the coaches so far. Two boxes that still need to be ticked from my POV in preseason are QB coaching and WR coaching. No lead QB coach and our WR coach hasn't ever coached them as a specialism. Ordinarily, I'd totally defer to Philbin as he seems a guy of excellent judgement. But we need big improvements from QB and WR, so it's fair to wonder aloud if the right coaching pieces are in place there. Time will tell.
The big box that needs ticking for the regular season is playcalling. Philbin doesn't do it and its not sensationalistic to say Sherman has drawn a fair bit of criticism for his, while at TAMU. So, it's an open point till we get into games.
So far, so excellent though, it must be said.