I understand your defensive reticence but believe the combination of Winker and Ervin is a 120+ wRC+ bat. Cheap.
I'd put Akiyama between them and deal with the 10 or so outs a year that would end up being extra base hits. (Especially if the other option is a league average bat with better than league average defense.)
That, in turn, allows them to play Senzel all over the field, strengthening each position and the overall offensive production. (Williams has espoused this type of production before, fwiw.)