I'll ask you the same question I asked Spud.
The Sox have around $70mm to spend in the offseason. I think the thing we can all agree on is that the FO isn't going to go into 2015 with a light payroll after coming in last (or 4th) in 2014.
You're set at C (Vazquez), 1B (Nap, Craig), 2B (Pedey, Betts, Holt), SS (Bogaerts, Marrero, Holt), 3B (Bogaerts, WMB, Cecchini, Holt), LF (Craig, Betts, Cespedes, Holt), CF (Bradley, Betts, Holt), RF (Vic, Cespedes, Betts, Holt), and DH (Ortiz).
You've got 2 of the 5 SP slots filled with Buch & Kelley, and lets just say they'll go in with 1 rookie (RDLR).
So where are they going to spend that $70mm? They have no slots open. They're not going to spend $70mm on a backup catcher and a couple middle of the road SP. And they're 100% not going to go into 2015 with a payroll around $130-140mm after coming in last.
They can't go into 2015 with a low payroll AND no ace or they will get crucified. And they don't have anywhere else to allocate that money, and its $70mm. Hell they could go spend $25mm on Lester, $25mm on Scherzer, and $5mm on Ross, and still have $15mm set aside for some bullpen arms.