My only early critique of the hire is the lack of play calling experience in Verducci's past.
According to John Silver, Verducci will help with the O-line as well as running backs and overall offensive game plan (obviously, as the Offensive coordinator), there is no clear indication of successful offensive play calling on the staff. As has been said on the board recently (Spackler or Serrano IIRC), play calling is an art form, not a science. Would Coach Diaco entrust Lineburg (Past Coordinator and QB coach) or Patterson (TE Coach) to usurp the Offensive Coordinator in terms of play calling? I sincerely hope not and with only 25 seconds between plays, Play calling cannot be a committee endeavor. I just hope that over the last 31 years, Verducci has perused "Play Calling for Dummies" at least a couple times. On the other hand, I don't remember play calling experience in Shane Day's background prior to October 2013, so who knows?
Contrary to what Spackler says above, I believe we will see more than a glimpse in 67 days, not 200.