As I read your team, it looks like you are trying for low or no injury guys with excellent D.
In your park (and there are several lefty parks, a couple HR parks, and a couple pitcher parks in your league), I will suggest you may wish a few more LH bats with possible pop.
Consider these options:
2b Knob is a misfit. Iwamura 4.04 and Schoendienst 4.32 both with no games missed, better D.
3b Ventura 4.74 is a option if you want to save a buck for a 3 game injury risk
DH/OF Stargell will hit much better than Belle in your park at 7.06 (3 game in risk) and has a -4 arm. Billy Williams 7.05 is no injury and better range.
CF - Turkey Stearnes, Duke Snider, Vada Pinson are some of my favorite LH cf, but there are many options
1b : as noted, mccovey is a very good buy (I use the 7.45 or cheaper), other great options with no injury depending on price point (descending order) include Gehrig, Musial, Yaz, Mattingly, Cooper, Howard, Terry.
I also think you need at least one more RP worth something, especially with a VERY cheap 4th starter.
Best of luck with your team