Maybe he wants him so he can use him against other teams 1st line? He's used Glenny as a top line shut down role before, no reason to think he won't again. Fact is we just don't know.
I wouldn't think so, right now he is grooming Mathews into that. Playing him against other top lines to prepare him to do that every night. It was kadri last year and now it's Mathews and if need be kadri goes back in to relieve him. I don't think he would change his development of mathews for glendening.
If he is brought in, it Would be to stabilize the center spot on the pk and the fourth line. Moore just doesn't do enough for Babcock liking. Glendening role like I said would be to protect leads, penalty kill, take dzone face off and maybe the occasional shutdown duties.
Leafs are thinking long term and long term success is developing Mathews into the center that can play against other top lines and win the match up most nights.