Not single players specifically, but here are the overrated concepts for this team.
1. The Bergeron/David Krejci 1+2 combo. David Krejci's dominance is overrated, living off his playoff achievements that are year by year becoming history and not the present. He's not bad, he's just not as good as he was, and with his contract, he's less valuable because of it. The team should have made a decision to build off of one, and keep the much younger Seguin and mold him. Instead we have 2 guys in their 30's declining at the same time. I've been advocating moving Krejci since we had Seguin, and in that time, I think his value his dropped significantly. I would have kept only one of Bergeron or Krejci, and I think it's apparent to me that it should be Bergeron.
2. Our prospect pool as a whole - (it IS good, but removing pieces from it could easily kill the depth Sweeney built). Moving any of our high end prospects is a bad idea, as we really need one of them to pan out, or we are in trouble.
3. Claude - His system is successful with the right guys, but we don't have the right guys, and he hasn't been able to adjust with the type of players we have. I do not think he uses players to their strengths, more of trying to stick square pegs through round holes. He relies on strong center depth; but what does he do when we don't have that? What does he do when we have offensively minded players? We have them play defensively, but poorly, while not encouraging the offensive side of their game. It's not taking advantage of the skills we have.
4. Leadership over skill - I think leadership is the least of our worries, and we've built a team around leaders, but lack the skill to get anything done. Sure we have Chara, Bergeron, Krug, Backes, Krejci, McQuaid, and even Marchand filling in on the leadership side of things, but leadership only gets you so far. We gave up on young players, but should leadership be players parts that help develop the youth?
5. The idea that this is a playoff team because we sit at 2nd in the division at various points of the season. It's not. Literally hasn't been for 2 seasons. And this season is no different. Games in hand have made the team seem a lot better than they were this season and last. We made buyer / not seller moves last season because the management had faith in this team; that was on the edge. Keeping players around because of this has hurt us. This team is much closer to the 2006-2008 version of the Bruins than the cup contending team of 4-6 years ago.
Not exactly the thread parameters, but things I think that are overrated either by the fanbase or the management.