I'm not GP, but in research very diverse teams are not uncommon. I'm on a team now in which I'm the embedded software engineer / Android SME and my coworker is

I'm not GP, but in research very diverse teams are not uncommon. I'm on a team now in which I'm the embedded software engineer / Android SME and my coworker is the 4G LTE/5G NR SME. I ask him 4G LTE/5G NR questions all the time. I don't know ahead of time if he'll know the answer, but (1) it'd be a solid bet that he does and (2) it's his responsibility to know it given his role.