Jagr wouldnt' cost as much and would be a pure rental. Flames are asking way too much (rumor they wanted Malcolm Subban, Chris Kelly and a 1st from the Bruins) and will price themselves out of the market. This isn't the Iggy from 3 or 4 years ago and they are cutting themselves short but not realizing that and asking a fair market price.
DL is looking for a top 6 forward and top line stay at home d. Greene will be back, I believe, before teh playoffs start .Mitchell I'm not so sure about. Even if he manages to get back to practice with the team b4 the playoffs, he's not played in almost a year and that knee (or how tentative he might be playing on it) might change the way he plays. Even if he does come back, he's done after next year. If you can get a veteren D it might not be a rental, it might be to take Willie's place.
I'd bet he's already approached the Stars about Jagr, who would be good fit for a playoff run, he's got an insane work ethic and has experience in playoffs, OT, et c, that you want for the Cup run. The workout routine he does religiously makes him one hard player to move off the puck . Look at the board battles he had with Kopi in the 3rd. He's still a very dangerous player and a very very smart one.