What evidence is there to say they wouldn't have done even better with an extra bullpen arm or bench bat.
That's a
question, bro.
Given that they actually IMPROVED their winning % after the deadline, I'd say they correctly assessed the talent on the team as being more than good enough to get us there. Sure, it's not over yet, but who wouldn't have taken the position we're in now over an unknown result if one could choose between the two?