But what's his Won-Loss record as a manager and do his players like him? I mean, seriously, let's focus on things that matter.
Do managers make strategic errors? Yes. Do errors such as Bochy's happen often? No. Does making an error such as Bochy made make him unqualified to manage? No (after all he was 4 division titles and a pennant to his credit).
Would a scribe, stat geek or table game dork (Sheehan's language) be able to make 100% correct strategic in-game decisions all the time? Highly doubtful. Were a scribe, stat geek or table game dork able to make 100% correct strategic in-game decisions all the time, would this make him or her (or it, the software) qualified to manage, given no professional on-field experience? Under no circumstances.
Mistakes happen. Leave it to vultures/green flies like Joe Sheehan to alight on them when they do.