for microsoft, 2 of the dev atudios shut down were mobile, one of them merging into besthesda. the other two, Arkane Austin, released a really terrible game last year, the other which caused the uproar, Tango Gameworks, created a popular game. Though personally I think that closed down because the original director who created the company left, and it would be hard for microsoft to merge the team elsewhere due to being japanese based, so they shut down the studio, despite recent sucess. Microsoft probably has little experience hiring a new game director for japan.