The former Real Madrid assistant manager was rather surprisingly sacked at the start of the month, with owner Mel Morris suggesting that Clement was not playing football in the ‘Derby way’.
And Christie has rather backed up the owner’s opinion today, by commenting that Derby’s training sessions are now far more intense.
"He's obviously got different methods," Christie said.
"We're pressing a lot more and it's a bit more intense.
"We've got more freedom in our play and I think you can see that.
"The lads are moving all around and rotating.
"Against Brentford, when we got into their final third, we were cutting them open and creating chances.
"That style is what we're all about and, on our day, I don't think there's a team in this league that can live with us.”
Clement was sacked after Derby went through a terrible run of form, which saw them slip down to sixth in the Championship table.
The Rams had initially been one of the front-runners in the second tier, but their alarming slide caused Morris to act.
Wassall lost his first match in charge against Milton Keynes Dons, but he managed to guide the Midlands club to victory against Brentford at Griffin Park.
The win was Derby’s first for eight matches, and Wassall’s side had to show their character to come from behind to claim the three points.
The Rams were 1-0 down in the 80th minute, but a trio of goals in the closing stages meant that Derby grabbed a very important win.