Insider Buzz: ND Coach Compares Ronnie Stanley's Work Ethic to Zack Martin

In response to multiple NFL general managers questioning Ronnie Stanley's work ethic, sources close to the offensive tackle have come to his defense to vouch for how hard a worker he is.

Why are GMs so concerned about Stanley? Which Pro Bowler did a Notre Dame coach compare him to?

Watch as Bleacher Report NFL Insider Jason Cole discusses Stanley in the video above.