[IanOzsvald]

I do some of this in data science when I'm giving strategic support to teams. Be aware that managers generally see you as a cost who doesn't bring financial benefit to the team (whilst the team are desperately asking for practical training so they can deliver quicker). Find ways to couch your offering in business benefits - you've helped teams avoid expensive bugs or via pragmatic refactoring they've responded to market change faster. Finding believable examples IMHO is actually quite hard. I've found managers far more open to strategic support (to help the team "go in the right direction"), with things like teaching code reviews and best practices bolted on as secondary benefits.