12 legs, if my counting skills are good. As the A’s Cruz into the Ginter Meetings (do you see what I did there — those two were traded for one another!), the idea of a 6-man rotation has been floated.
There’s a reason you never see 6-man rotations actually employed. It’s hard enough to find 5 quality starting pitchers — just look at most teams’ #5 SP for proof — and even if you have 6 SPs you have to be willing to take a handful of starts away from your best ones in order to make room for all the rest.