I'm not sure how many more quality seasons he would have left but he would provide leadership and toughness.
I was thinking of him on a line with Grigerenko and Ott and how that line would work out. I heard Grigerenko say that he needs to work on his draws. Ott could be on Grigerenkos line and take draws.
Doan would be a mentor on the other side to help Grogerenko become a pro. Having 2 gritty, hard working, leader, veteran wingers next to Grigerenko makes a lot of sense.