MIAMI — It’s one thing to spend lavishly on a team that’s a legitimate Super Bowl contender. It’s quite another to spend lavishly on a team that’s not. And that’s why the Dolphins’ handling of the denouement of their season — this murderer’s row of Dallas, Baltimore and Buffalo followed (very likely) by the playoffs — will be significant in shaping critical decisions that will go all the way up to owner Stephen Ross’ desk. If this team proves, beginning Sunday against the Cowboys and in the weeks to come, that it can make a legitimate Super Bowl run, it would be sensible for Ross to spend what…
