Life in the NFL can be challenging. That's where Dwight Hollier
First and 10: It's not clear yet whether NFL will change
Can the NFL fix its officiating problem?
NFL 'considering firing head of officiating' over the missed call
Can the NFL fix its officiating problem?
Owners pass 2 rules changes - Statesboro Herald
Alberto Riveron replacing Dean Blandino as head of officiating for NFL
Riveron has difficult challenge as NFL officiating chief
Challenge of Dean Blandino's old job is great enough for 3 people
NFL tells game officials not to use index cards to measure
Alberto Riveron - Wikipedia