10:44 AM ET 01.12 | Reggie Bush wants to be back. The Dolphins want him back. But nervous Dolphins fans should prepare themselves for this reality: Bush probably won't be back before seeing if a better deal is out there. Here's why: After signing a two-year, $9.75 million contract in 2011, Bush had his two most productive seasons as a pro. So in his mind, the last deal represents the floor for his next. Why would Bush willingly take a pay cut when he has exceeded expectations? But basic economics are working against him. Bush's $4.5 million base salary last year was eighth-most among running backs, but he finished 17th in the league in rushing (986 yards). Why would the Dolphins rush to pay him more than they believe he's worth?