Robbie Caldwell

• Won a national title on Clemson’s 2016 staff (assistant coach, offensive Linemen) · the staff · source
• Won a national title on Clemson’s 2018 staff (assistant coach, offensive Linemen) · the staff · source

The champions’ staffs from 1990 on, as the schools listed them that season: Staff lists: Drew Hoover’s how-many-rings (MIT), from the schools’ media guides and staff pages. Roles as the source words them.

Caldwell’s teams went for it on 16% of fourth downs and on 30% of those where the model said go for it, passed on 51% of plays and took 18.9 seconds a play, in 2010.

His seasons as a head coach from 2004 on, from ESPN’s play by play: fourth downs where he went for it out of every fourth-down decision; how often he went when SportsDataverse’s fourth-down model said going for it was the better call; the share of his offense’s plays that were passes; seconds of game clock per offensive play (lower is faster); and expected points added per offensive play (EPA, a measure of how much each play moved the offense toward points). The season in progress counts its games so far. SportsDataverse’s coach tendencies, from ESPN’s play by play; the EPA and the fourth-down model are SportsDataverse’s.