Well, it isn't too msmart right now to make contracts not knowing the situation, that's for sure. The better businessmen among NFL owners are being prudent at this time, waiting for the rules to shake out. But even though the Colts are not a "rich" team don't have to be prudent. They can spend more that the "rich" teams because they figure that Kraft and Jerry Jones and dan Snyder will give him the money with increased revenue sharing. Because those three (and others) are good busniessmen, they will make enough money to pay the Colts for whatever mistakes they make.
And if there is no cap, maybe the NFL will bail them out or make special rules.