Stastny is a disaster waiting to happen, and I am someone who still thinks the Richards contract was a good idea at the time.
I was correct in thinking the Rangers of 2010-11 were maybe a player away from being a special team. Disappointed as we may have been in the end of that season, they WERE a special team and were a bounce away from Game 7 of the Eastern Final at home. You knew that the last 3-4 years of that contract to Richards were just garbage time to get the cap hit down and that they were basically paying out the ass to shoot for the Cup in the next few seasons, because they had no one in the system ready to come up and play center for the big club, they had no chips to trade for a big center, and there wasn't really a big center even available through the trade route. (Remember, this is coming off the 2010-11 season, where Anisimov and Dubinsky were invaluable young core pieces). So we might be pulling our hair out at the Richards contract now, but at the end of the day... he IS putting up decent numbers for a playoff team, and I wouldn't contribute the offensive woes of the 2012 playoffs and 2013 half-a-season to him.
Bringing in Stastny long-term for big bucks is such a bad idea because the Rangers DO have four young guys in Hartford that will be ready to come up and help the Rangers in the near future. I believe that Fast, Kristo, Lindberg, and Miller. If you're the Rangers, you are already a playoff team with the production Richards is giving you. Why would you dump him to just replace that cap hit with basically the same thing? How about you see what you have with the young guys (who together won't even add up to an annual salary for Stastny), and save that money for a real difference maker? Hell, everyone is low on Stepan right now, and he's only 23. He could still very well be your #1 center for a long time. Brassard could be #2 easy. Lindberg and Miller round it out.
If you sign Stastny, you are just locked into the type of team you are now: a playoff team that needs a ton of things to go right to even make it to the Finals.
If you don't, you can see what you have in the young guys, and if it's not the answer to push the team over the top, at least you have some damn flexibility to change things up until you get the right mix.