Wilson wanted more input in the offensive philosophy and Coach Pete had a different view. Pete Carroll has a run first philosophy. Shottenheimer spurned Wilson when Wilson wanted a lot of input into play calling etc. A few comments from an article I will link to gives a little background on how one thing led to another. "There was one issue, however — head coach Pete Carroll. Carroll has quite the NFL Hall of Fame resume as a coach, and that’s been driven by a fierce ground game and suffocating defense. The Seahawks would fall to the Buffalo Bills 44-34 after a blazing 6-1 start to the season. Wilson coughed up the ball four times while looking lost in the backfield, the rushing attack turned 17 touches into just 57 yards, and Bills QB Josh Allen carved up the defense. Left dumbfounded by the results, Carroll decided it was time for a change back to his bread and butter. A week later, Wilson would play his worst game of the season against the Los Angeles Rams, practically killing his MVP hopes. After losing three games in four weeks, Seattle hosted Arizona in Week 11. Having lost to the Cardinals in Week 7 in overtime, Wilson felt he had some ideas to fix the offense and help the team win the second matchup. Offensive coordinator Brian Schottenheimer ignored Wilson’s suggestions, causing the franchise QB to leave the room incensed. Ironically, Carroll was not involved in the meeting, but his offensive philosophies affected Schottenheimer’s offensive scheme and play calling. The root of the problem between Wilson and the Seahawks was Seattle’s unwillingness to let the QB be more involved in the offensive game planning. Wilson’s reaction to Schottenheimer’s brush-off should’ve been a sign, but apparently, Carroll did not see it. The following offseason, Seattle fired Schottenheimer. The final straw came in the 2021 offseason when Wilson again asked Carroll how Seattle planned to address an offensive line that offered him little protection. Instead of giving his franchise QB a definitive plan or answer, Carroll insisted Wilson have faith in him. When the offense continued to struggle after Schottenheimer’s dismissal, Wilson started to make the necessary moves to initiate a trade, and the rest is history. The above info came from: