EB had an oline that we as fans were calling out as putrid well before the season started alongside a inexperienced QB and he saw fit to run an offense that called more passing plays than any other team in the NFL... and for the majority of the season said pass plays were of the long developing variety with little to no usage of quick dumpoffs, hots or bailouts. He also pushed for the acquisition of talent that has turned out to be well below sub par.
EB helped to make his bed and then proceeded to crap all over it by repeatedly doing the worst possible things you can do w/ the assets he had. He too often fails to prioritize the better parts of his offense and as a result he developed something that is worse than the sum of it parts, which was not exactly great to begin with. He has been nothing but an epic wombo-combo of ignorance and hubris, and the hubris is unearned.
There is no attempt to mold system or scheme to personnel. There is minimal attempt to alter gameplan to take advantage of opponent weakness. There is just EBs system.