I'm glad to have him back managing in the Premier League...just not with us. My assessment of him here was:
Pros:
Good tactician - a couple of shockers where he didn't use a DM, but generally was very good tactically. Versatile in his approach (beat Pochettino twice, using two very different game plans to get the result). A few other examples here -
http://www.glory-glory.co.uk/community/threads/tim-sherwoodgone-o.5527/page-208#post-512241
Good judge of a player - Brought Bentaleb and Kane into the first team squad from the youth team when it was clear he didn't rate Capoue and Soldado from early on. A lot of people really didn't agree with that at the time (remember the whole Bentaleb is Sherwood's lovechild thing?)
Cons:
Man management - Was clear that a lot of his players didn't like him. The team often appeared nervous and regularly capitulated in big games, very few players looked like they were enjoying their football on the pitch. Though he is one of the few managers who has successfully man managed Adebayor
Poor coach - So many sloppy mistakes from the team on the pitch, both in attack and defence. A lot of our players badly regressed under him.
Media handling - Oh GHod, some of those interviews. Some of those comments. Was an utter laughing stock in the media.
If he's taken a step back, taken a long hard look at himself and learned when to keep his mouth shut (both to the media and to his players), he'll probably keep Villa up. Whether he'll ever really progress them though will require him getting some good backroom staff to help with the coaching though.