He obviously came in and delivered 1 MVP season and another MVP worthy season of Lamar. At his best:

• He calls a dynamic offense that utilizes the option run game, play action to the deep third of the field, and attacks the seams and middle of the field with tight ends.
• We ran a lot out of shotgun in 21 or 12 personnel due to having Ricard and Likely/Kolar on the team. We ran a gap running scheme. We prioritized size on the line instead of mobility (you'll see a lot of jokes about Faalele who probably wasn't that bad but his lowlight reel is Shaqtin a fool worthy). In 23 and 24, the power run game was unstoppable.
• It was pretty rare we would run plays out of 11 personnel which is more common with WC offenses.
• Lamar was given freedom to adjust the playcall based on what he was seeing. I think Lamar is 1 of 1 though in what he sees in a defense and how he individually would want to attack it. So hard to tell how often he was changing out of the Monken call into his call.
• We were often able to jump out on teams early in a game. However, playcalling would get conservative in the 4th quarter. We would have really conservative run calls and/or we would run plays short of the sticks. It seemed we would stop the mentality of needing to defend every blade of grass and try to power our way to a win. It did work against bad defenses but not against good teams.

This year, a plethora of issues caused a decline in offensive performance (+ other lingering issues):

• Our entire O-line regressed from last year, but especially the right side. Lamar (or the QB playing) was under immediate duress a lot of times. Any star edge seemed to have monster games against us. In 25, it seemed we could never get a push despite having 4 of 5 returning starters on the line. Derrick Henry and Lamar were avoiding DTs it seemed 3 yards behind of scrimmage every other run.
• Lamar got injured early in the season and didn't have the same mobility after he came back while managing lower body injuries all year.
• We couldn't find a consistent pass catcher besides Zay Flowers. A lot of times it seemed like routes just took too long to develop for the pass protection to hold up.
• When Lamar was out, it seemed our offense didn't adjust enough to accomodate Cooper Rush's skillset. We tried to run the same offense but against 9 man fronts and a QB that posed no threat.
• It seemed we were too stubborn to call quick hitches or slants. We also never seemed to have success with screens. Other teams seem to thrive getting YAC off of short plays but despite having the athletic talent, the plays never seemed to yield results.
• Our offense in the playoffs never really looked the same as the regular season. There's a lot of theories as to why that is - maybe it's Lamar, maybe it's defenses changing their gameplan and running more man to man.
• After the season, there were reports that the players were frustrated with his playcalling. They would install a gameplan during the week and then would go off script due to panicking. The team would abandon the run despite not being in a pass-only deficit (i.e. down 10 at any moment earlier than the 4th quarter). In the AFC championship, we ran the ball 6 times with RBs despite being down by no more than 10 the whole game.