Buffalo Bills general manager Doug Whaley may not be a long-term fit with head coach Sean McDermott. McDermott already has a growing cache with ownership, and they could bring in vice presidents and/or personnel figures with ties to the coach in the near future.

Miami (Fla.) TE David Njoku visited the Carolina Panthers Thursday, March 23.

Detroit Lions OT Ricky Wagner said he is fully recovered from a foot injury that impacted his performance in 2015.

Free-agent DE Vance Walker (Broncos) has talked to the Broncos about re-signing, and head coach Vance Joseph said the two sides will try to ‘get something done.’

Free-agent OG Andrew Tiller (49ers) visited the Kansas City Chiefs but left without a contract agreement, according to a source.

South Florida RB Marlon Mack has met with the Tampa Bay Buccaneers multiple times, and head coach Dirk Koetter attended Mack’s pro day.

South Florida RB Marlon Mack has met with 25 teams in preparation for the 2017 NFL Draft.

Stanford RB Christian McCaffrey said he wanted to use his pro day to show his ability to run routes from the slot and the outside and do ‘anything’ on the football field.

Stanford RB Christian McCaffrey said he wanted to use his pro day to show his ability to run routes from the slot and the outside and do ‘anything’ on the football field.

Southern California WR JuJu Smith-Schuster said he is ‘the top receiver’ in the 2017 NFL Draft following his pro day Thursday, March 23.

Footballguys View: Slow your roll there, son. We like Smith-Schuster but he needs to clean up his breaks during route running, and doesn’t accelerate well out of his cuts. He’ll see a lot of contested balls, though luckily for him he thrives on that. He’s a big bodied, aggressive receiver, but he’s not the top of the class.