You do remember those plays where we had colston, meach, henderson, and moore on the field at the same time right? It's called empty back sets, you can still have a TE in those sets...
Our current WR corp isn't as near as talented as that group. Meach & Henderson could stretch the field, while Moore was slippery and reliable for getting in those soft spots in the zone. Meanwhile you had great TE play from either Shockey or Graham.