The question there is why you're operating using teams of 5 devs. The most productive environments I've worked at were ones where single devs had ownership over a chunk large enough not to require that much interaction (IE an amount of interaction that you would contemplate between teams, not between devs on a team)

The issue with that is that you have to eat a big handover cost when people leave. But these environments had great retention and long contractual notice periods, so it wasn't a huge issue.

IMO the "two pizza team" isn't as productive as people think.