God no, I think Zimmer's bat is no more than that of a pitcher. But my hope is that the 5th outfielder is nothing but a defensive substitute/pinch runner and gets virtually NO at bats. Lopez and Lukes should be at AAA getting some at bats in case of injuries. If anything I'd have the outfield depth being:
Springer
KK
Varsho
Whitfield
4th outfielder
and the last spot: pinch runner, defensive replacement.
Zimmer would be good enough for that. Lukes and Lopez might be wasted.