In regards to the Yuniesky Betancourt signing, I am seeing a lot of people talk about how Ned Yost does not use his bench very much. On the surface, this fact seems plausible. Mitch Maier was laughably buried last season and most of the Royals regulars seemed to start almost everyday. When Aviles and Getz were on the roster at the same time, both seemed to play an adequate amount, and Yost has a larger sample size for using bench players than last season. I think how Yost uses his bench is not definitively known, but is being discussed as it is set in stone.
Sadly, I do not know the answer to how Yost uses his bench either, but I would be willing to put the work in and figure it out over my Winter Break. I also know very little about manger tendencies in general, other than some of the more recent posts at Beyond the Box Score. A quick Google search did not provide any answers. So my questions to the crowd are: Does anyone have solid evidence on how Yost uses his bench? If not, are their any studies on previous managers that show bench use tendencies that I could mimic? If no studies have been done, what does everyone think a valid study of bench use tendencies would consist of?