Bush, 29, has been limited to just eight games this season by ankle injury. After setting a career high with 1,502 yards from scrimmage last season, he has just 217 rushing yards and 177 receiving yards this season.
Caldwell likened Bush's current situation to where some believed teammate Calvin Johnson was a short time ago when he returned from an ankle injury. Johnson was limited in two games and missed another three with an injured ankle earlier this season.
"I kind of like when you asked that question because I think you may have asked about three weeks ago whether we were kind of seeing the demise of Calvin (Johnson)," Caldwell said. "So, I kind of like that question because I think he responded in a way in which was appropriate. I think you're going to find that Reggie will do the same at some point as well.
Bush returned last week in the win over the Tampa Bay Buccaneers, finishing with just 26 yards on eight carries. Bush said he was satisfied to not re-injure his ankle after missing three games.
"It felt good to finish the game without any setbacks," he said. "That was kind of the main goal. That was secondary goal; obviously the main goal was to get the win. We accomplished both of those."
- Jack Jorgensen