The writers don't seem to have the guts to break formula. They keep setting up these potentially great new stories like at the end of season 3, when it looked like Chuck was going to do all kinds of neat crazy stuff on his own with his father's super computers - that was abandoned after one episode. And then this season that was set up to have chuck run his own spy company with morgan as the intersect - abandonded pretty quickly and back to formula!
The only constant they have broken free of is Chuck losing the intersect, and that has caused this season to make no sense in an attempt to make Chuck still relevant. Out of nowhere he is some super elite computer hacker the hacking world revered despite never having a hacking past mentioned in 4 seasons of chuck doing his computer thing prior to this. And now, after a short training period, is is awesome enough to beat up Shaw? Even without the intersect, Shaw should beat the snot out of chuck blindfolded.
This has been a great series that seems to be running a little longer than it should.