I hate the idea of replacing function calls with network requests for organizational reasons, even for a fast network in the same datacenter you add several ord

I hate the idea of replacing function calls with network requests for organizational reasons, even for a fast network in the same datacenter you add several orders of magnitude of latency to the calls. If the problem is that groups can't work independently of each other in the monolith, it should be solvable with modularization and defining APIs for those modules.