But indirectly I believe.
The AI will not draft because it needs player x for its scheme. It chases the highest overalls, and the scheme system is a way to manipulate overalls.
You could say I'm being pedantic, but take a look at the West Coast Zone Run scheme fit from the blog. It says they want possession WRs for that system. That is for all WRs.
All teams, regardless of system, want that one home run type player. A guy to take the top of the defense even if it is just to open up the shallow stuff a little more.
Whereas in real life a team that has 2 possession WRs would probably be interested in acquiring some speed, in Madden they will continue looking for possession WRs simply because those players will have higher overalls.