...unless somebody snaps up the player you dropped
In my experience, players with a lengthy IR status at the start of the season, rarely make much of an impact once they return. Same with most traded players, weirdly.
I'm not stacking IR players, personally. If one or two of my drafted players get placed on IR, I won't have anywhere to put them. I mean, they could stay on the bench, but I'd rather have the option.