It would be a mistake not starting him, the Bills would be making it easier for the Pats to slide extra coverage over to Diggs. No one shaking in their boots worried about Beasley who is not as fast or quick in space. When you play smallest WR'S they need to get separation because their catch radius is not as big. Beasley seems to excel is soft zone coverage where he finds his spots. He does not excel at running away from defenders , Pats play a lot of man to man & double up your top option
I am concerned that Sean will carry his loyaility card and continue to roll with Beasley. This is the NFL, good teams will keep running the same plays until a team shows it can stop it.