West Coast coach Adam Simpson has given a candid glimpse into the Eagles' spluttering season - admitting he needs to make changes at AFL level but confessing his players at WAFL level don't have the form to make cases for themselves.

At least one of Simpson's changes will be a forced one, with ruckman Nic Naitanui ruled out on Monday for up to two months due to surgery.

But the Eagles' capitulation to Adelaide at Domain Stadium on Saturday night - held scoreless in the last quarter as the Crows romped away with the win - means the coach is also keen to explore his avenues when it comes to selection. If only there were any.

Speaking on Radio 6PR's Sports Today program on Monday night, Simpson said last weekend's late inclusion Tom Barrass had deserved his elevation to the top level but precious few other fringe Eagles had put their names into the frame.