Clarke faced his first senior role in management with Albion after being number two at Newcastle, Chelsea, West Ham and Liverpool.
The Scot had a hard act to follow in Hodgson, who guided Albion to a top-10 finish in the Barclays Premier League last season.
But Morrison believes he has proved already to be up to the task, with Albion lying in seventh spot after a 2-1 home win over Swansea.
Morrison, Albion's official man of the match against the Swans, said: "Look where we are. The gaffer has done fantastic.
"Roy did a fantastic job here but Steve came in, made some good signings, and also had a good group of players.
"Everyone who steps on that pitch gives 100% and that has been the key of this season. At the start of pre-season he said he wasn't going to change much because it didn't need changing.
"He tinkered a little bit, but that was about passing the ball a bit more and getting up the pitch a bit more. It seemed to work."