Coach Adam Simpson is not mucking around when it comes to the selection table.

Following arguably the worst performance in his career, 276-gamer Andrew Gaff will be dropped from the senior side for Sunday's clash with GWS.

Gaff - who was subbed out just after half-time - gathered a measly four possessions in the 50-point loss to Port Adelaide on Sunday.

The two-time All-Australian had topped last year's Round 17 outing against the Lions, where he possessed the ball six times as well as two five-disposal games in his debut season.

The move to drop Gaff isn't as dour as one might think, with a host of young guns finally waiting for their opportunity.

"Yeah, he didn't have a good day," Simpson said on Channel 7.

"Obviously he got subbed out just after halftime. He's probably going to need to find some form at WAFL level this week which is all part of the game.

"Sometimes you're out of form and the best way to get it back is at WAFL level, so fortunately we've got some selection opportunities now for some other players as well.

"We'll support 'Gaffy' as best we can but getting some touch in the WAFL will be the next step for him.

"It is (a hard conversation to have). That's the game though and especially with some availability now we can make some decisions that are best for the club and unfortunately for any of our players who aren't in form or don't perform at the level we think they should, there's opportunities for others.

"He's aware of it. They're all aware of it. It's just part of the game."

Across the past two seasons, the Eagles have been ravaged by injury, forcing them to make senior side selections they wouldn't normally make.

Simpson will likely look to bring in some youth to the side, with a focus on gaining experience and exposure at AFL level.

The WAFL side faced Perth over the weekend in a last-minute tune-up before the season starts on March 30.

Coach Kyal Horsley named a few impressive performances that will be in line to replace Gaff against the Giants.

Mid-season recruit Ryan Maric is set to put his hand up for selection after hitting the scoreboard.

Zane Trew and Clay Hall were instrumental through the midfield against Perth and are set to get some more opportunities at the elite level.

Familiar duo Jamaine Jones and Josh Rotham produced strong performances across the backline, with a reshuffle to fill the Gaff void expected.

Simpson's men are gearing up for a clash against ladder leaders GWS at Optus Stadium on Sunday.

The Eagles won the corresponding clash last year by 19 points.