T-Mobile moght, Sprint won’t. They are a distressed company and no amount “shoulds” will change their trajectory. The question is whether T-Mobile deserves to grab all of Sprints customers in a “migrate by default” scheme, or their gonna have to fight for those customers when Sprint inevitably goes down.

If either of them knew how to do that I think they would have by now. For real, if you can tell either of them how you'll be an overnight millionaire.