Poles had alot to rebuild, but he also created holes he had to fill.
We had a good edge rusher in Khalil Mack, only to replace him with Sweat for another huge contract.
We had a good linebacker in Roquan, and he was replaced with ho-hum Edmunds on an expensive contract.
Daniels, Mooney and Montgomery seem to be doing well with their new teams
In terms of net improvement over 3 years, Poles improved at WR1, CB2, NB. If Brisker can stay healthy, you can add SS as well. That's 4 positions in 3 years. Jury is still out on whether we improved at DT, QB, and RT.