And that lineup you suggest is the worst in the AL. Middlebrooks has been injury and strikeout prone, and falling out of Boston's plans. Cecchini has regressed significantly with the bat in AAA. Betts' future role is unclear. Also, Ortiz is going to be 39 in November, and has shown some decline with the bat. Holt is a flash in the pan, as he's regressed heavily post All-Star break (.191/.269/.234), and it's unsurprising Boston has lost 7 of their 8 games. The Red Sox are going have to seek another leadoff option soon, as the league has caught up to Holt. Victorino has injury issues, and Bogaerts, despite his power potential, isn't ready.
Han-Ram, Cruz, Shields, Hardy will cost far beyond what Boston can afford, and are likely to get long-term deals that Boston wants to avoid, having been burned on the Crawford and A-Gone deals(only getting bailed out by the Dodgers saved them). And Hanley Ramirez is likely headed to 3B or DH soon, as his range at SS is awful. Hardy's likely headed for the Yankees or back to the Orioles, and Shields isn't really a fit for Fenway due to his HR tendencies. Masterson has regressed a lot.. lucky the Indians were even able to get anything for him. And it's said that Boston wants to avoid giving significant deals to pitchers over 30 because of what's happening in New York.
And as for their prospects, it's hard to see whether they pan out.