What were all of those pieces in Philly? During his 4 straight NFC run, the only season McNabb had any pass catcher on the level of Kelce was his time with TO. That was McNabb's best season as a QB and Andy Reid's best season in Philly. People really don't remember how weak those receivers were that McNabb had for most of his time in Philly. That's why I said that people don't realize that Mahomes have been on the best teams that Andy Reid has had. I would have put an asterisk on that though, the team that he began building at the end of his time in Philly would have been the best but he had all of that personal stuff going on at the same time.
The legend of Matt Cassell in the NFL began with an 11 win season.
In the same vein, would Mahomes have the same level of success outside of Reid and his system. Using Brady as an example, he was in the same offense throughout his entire time in New England. It evolved but the offense was the offense. When he went to Tampa, he struggled running Bruce Arians system and they ultimately had to modify it for him and the next season, the were basically running what he ran in . Peyton Manning brought the exact same offense to Denver than he ran in Indy.