I feel like the system may allow for easier development of QBs but it may expose skill position players who don’t study. The 49ers drafted several WRs in Shanahans first few years that didn’t pan out, and based on what we’ve been told it was likely because they weren’t in the playbook enough.
So skill position guys may be harder to develop or get instant impacts from. Where in Payton’s system you could get a Kenny Still, Marques Colston, Michael Thomas or Chris Olave to produce year 1. Every now and again you got a Meachem or a Nick Toon but you ended up with far more contributors like Lance Moore than not.