Managing RM and being successful doing it are different things. Ramos did OK I guess.
Michel went to the best team in Greece and dominated a two team league. now moved to Marseille where he's been awful.
Marcelino has done OK at Villarreal. Aside from that not much for managers after leaving Sevilla.
As for trophies under monchi...
Spanish Cups ( 2007 and 2010)
Spanish Super Cup (2007)
Europa League/UEFA Cups (2006, 2007, 2014, 2015and 2016)
and the 2006 UEFA Super Cup
If your goal here is to say monchi isn't one of the best DoF out there I think you're way off base. Btw I'm not trying to discount Emery. He was my first choice manager. Just saying to me monchi is more important than whoever the manager is.
Im not saying Monchi doesnt do an outstanding job, but you implied he doesnt need a manager, only Emery and Ramos won trophies under him, so he cant do it on his own, was more my point.