ALLEN PARK, Mich. (AP) — Reggie Bush has watched film of the Detroit Lions, and he has seen opposing safeties playing deep and double-teaming Calvin Johnson.

"It's a running back's dream," Bush said. "We have to be able to run the ball in that situation. One of the reasons I wanted to come here is to be able to bring a balanced attack."

Bush was introduced Wednesday as Detroit's most high-profile free agent signing so far this offseason, with the Lions hoping he can give a boost to an offense that already includes Johnson and quarterback Matthew Stafford.