Yes, that makes perfect sense. There is a temporary solution, which has good side effects, you can raise the exposure values of a few select players higher than their teammates which will isolate them as high value players which you would want a filler as opposed to players you'd only want in a stack. Stack exposure can probably be done but it might get very confusing as it can easily conflict with player exposure and the interactions between the two may not be clear for new users. As we add more and more features, this is always a concern.

I don't know what you mean by bumps (not projections I hope), I meant increase the exposure for the players you may want as fillers as well as in stacks.