Lions farm coaches in San Fran

If Hall-of-Famer Mike Singletary was to sign on at Detroit, he'd be the third member of the 49ers coaching staff in a row to jump to the Lions head coach position, following Marty Mornhinweg and the recently-fired Steve Mariucci.

Mariucci came off a great run with the 49ers. Mornhinweg, was an assistant coach, as Singletary is now. Is he ready? I don't know. Will it matter. Probably not.