But for me as I keep saying Morris just learned a new defense on the job.
All due respect but he hasn't been playing Staley's scheme. Staley would give the QB one look then shift into another at the snap. Staley played a zone with man concepts. Neither of those things are what Morris played for the bulk of the season. He played a very soft passive zone. He would switch up and play man but it was clear before the snap he was in man coverage, he didn't play zone with man concepts. Staley played aggressively, defending all passing levels. Morris routinely left the short zone uncontested. That is why Kyler had a field day in their first win. Simply plotting Kyler's passes shows how the vast majority of his passes were within 10 yds. Morris ignored that in the first game or he didn't do his homework.
Morris played the same soft zone he used with the Falcons and which probably led to his being switched to being a WR coach. It's only towards the end of the season that he has begun to play his secondary aggressively. His scheme dropped this #1 ranked defense to around the 16th ranked unit, being ranked in the top 5 in some of the negative pass defense rankings in the process.
Has he begun to change? He still loves his soft zone which allowed the Niners to go down and tie up the game in less than 40 seconds. But the replay of the pick 6 against Murray shows how he changed in playing the Cards in both the wins. His secondary was covering Kyler's first two short reads which allowed Reeder time to get to him. Morris was in man coverage on that play which in itself is a change from earlier in the season.