Originally Posted by fearofpopvol1
I think they relay information to him, but it's still his call. If someone in the booth told him to challenge the 1st time, in hopes of getting 2 extra yards (when it wasn't clear), their job should be on the hot seat.
I think he was challenging to get a turnover. If he was told the runner wasn't down before the ball came out then it would be worth the challenge. It's just bad because it was so obvious that the runner was down, so I have no idea why Marvin would decide to challenge, or someone would tell Marvin to challenge. I have no idea how that works with them.