We can stop all the speculation as to why Bowen left for Washington. As my username indicates I live in (actually the Maryland suburbs) of DC. On my way home from work I decided to tune into ESPN 980 and I happened to tune in right as the interview with Bowen started, welcoming him as the newest Redskin. When Andy Pollin asked Bowen why would he have stayed in Dallas if the money was right, Bowen hesitated and mention how hard the decision would have been to leave and how much he knows and loves the organization, coaches and players.
One could start to hear that Pollin then really wanted to know why he left and Bowen said that once the Free Agency period started that Shannahan and Jim Haslett called him everyday telling him how much they needed and wanted him and that the Cowboys didn't make him feel like he was a priority. Also keep in mind that the reports were that when talks with Doug Free started, talks with Stephen Bowen started.
Knowing this, it sounds like Bowen was like a teenage girl with a crush and that the boy that other guy at school started talking to her all of sudden and the guy who really liked and was probably the better fit for her didn't act like the new guy. The Skins are still in shambles and I guess this is all about money, which is fine.
A word to young Mr. Bowen as he chases the money, my grandfather always says, "The good Lord doesn't give us youth and wisdom at the same time" and if ever anyone epitomized that quote, it's Stephen Bowen.