I think the current offense is more condensed is that IHMO it fits Jacobs style better and because they are forced to run more because they didn't have Watson for any solid amount of time and Doubs as well. Those two (and Reed) are the closest thing they have to receivers the opponents have to account for.
I don't think you need to empty or blow up the receiver room what they need is an influx of talent, a veteran, and mandatory jugs catching passes.