Any ideas on why GMB decided to switch roles

Curious to hear some ideas on this because I don't understand why

nAts want to try some tiktok walls

nAts on viper already got read by all team (his gameplay)
so they have to anti-strat that

they dont want to be predictable maybe

to much gambit vods to read them

They didn't want Liquid to get 13-0'd pepeCry

Because gambit has champions mindset. You need not good Agentname mainer, you need good players who can play on any agent.