Marc Trestman, Bill Callahan, Rob Chudzinski and Adam Gase are considered candidates for the San Francisco 49ers' offensive coordinator vacancy.

The 49ers hired Jim Tomsula as head coach on Wednesday.

Gase was the other leading candidate to become head coach. Gase is in limbo with the Denver Broncos, while he's also a coordinator candidate for the St. Louis Rams and Atlanta Falcons.