Looking at next year, since I'm bored and given up on this year, here's what the team could look like without any trades or signings.
DH-Ortiz, C-Vazquez, 1B-Napoli, 2B-Pedroia, SS-Bogaerts, 3B-Middlebrooks/Holt, LF-Nava/Holt, CF-JBJ, RF-Victorino
SP-Lackey, Buchholz, Workman, DeLaRosa, Doubront?
RP-Mujica, Tazawa, ??, ??, ??, ??
The offense is not much different than this year, which could be bad since this year has sucked, but it wasn't supposed to suck since it's not much different than 2013, so who knows.
Pitching needs to replace Lester (maybe with Lester), and much of the bullpen including closer.
The good news is that the above team is about $67 million less than the current team (Nava, Doubront, Tazawa, Herrera, and Carp are arbitration eligible, so I added about $5 million to keep the first 3). Plenty of money to sign a top pitcher, fill out the bullpen, and still add a big bat. Also, over $55 million possibly coming off the books after next year (even keeping Ortiz for $10 million), in Napoli, Victorino, Buchholz (team option), Mujica, and Adrian Gonzalez. But also lose 500k Lackey. We'll definitely see how good the front office is these next 2 years. Tons of flexibility.
One problem is the team seems to be totally against Bogaerts at SS, so then they'll have to acquire (and overpay) a SS. I wouldn't be at all surprised now if they resign Drew.
Edit: I guess they could play Holt full time at SS, but then would lose his versatility.