This is what I was suggesting to the poster who proposed the "plug and play" concept, and gelling was overrated.Anyone who thinks OL are "plug and play" doesn't know much at all about football. If that were true, there would be little to no drop off when a starter went down and the backup who practices with the 1s every day came in. OL is very much a "team" unit. Every player on the OL needs to know and trust every other player and know instinctively how to work together. There is no other position group on a team that requires as much cohesion as the OL.
Bringing in 4 or 5 new OL that have never played together or in an OC's system and expecting them to immediately be effective is pure fantasy.
Your post was much more, how shall I say, straightforward.