You have to think other teams in the east (not montreal) were interested in Zidlicky. A right handed puck moving defensmen who has played well in the playoffs. A two situation player as well. The problem is, once you give him an option of teams he can very easily just pick one and squash a trade to Boston or Florida.
I think the point here is that once you have a full NTC in a players contract, these things are going to happen no matter what you do.