what happened to the old studio lead of la dice? did they fire him?
That's not how things are done. Christian, the current GM of DICE LA, has done a lovely job fostering a very nice, friendly and positive work culture in the DICE LA offices, and has led the studio with their work on the multiple projects they've supported over the years. :)
Studios in EA are structured in groups, with each studio having its own GM (general manager) and one group GM for each group. For example, Oskar is our GM for DICE, while David Rutter is now leading the overall EA European Studios group, which DICE, Ghost and Criterion are part of, and until recently, DICE LA. Studios are grouped in a way to make sense financially, regionally, logistically, share resources easier, and so on.
As the Respawn organisation grows, it makes perfect sense to have DICE LA be part of that, since they have already been cooperating on things. It would help DICE LA share more knowledge and work closer with Respawn, and in turn grow as well. :) Not to mention, they are very close geographically.