I have a real hard time thinking McVay is totally going to scrap his offensive philosophy after 1 bad year.
He believes in spacing in the passing game. Actually in the run game as well, thats why they run an outside zone scheme running the ball. As far as the passing game, he believes in bunching his WRs then attacking all 3 levels to create space. Take your deep shots when they are there to push the ball down the field and to keep defenses honest, but mainly use the deep guy to create space for your route runners underneath on the short and intermediate routes.
If he has just Woods and Kupp out there with another Kupp or Woods, there is a major lack of deep speed and, IMO, that creates issues up and down the route tree. Its why he went and got Watkins followed by Cooks. For that topend deep stuff to give him the spacing he wants.
Oddly enough, its also why his offense stalls in the redzone, the field gets shorter and the spacing gets tighter. I have been complaining about this for 3 years now.
Getting back to precise route runners with great hands:
Van Jefferson - dads a former player and now a WR coach, kid knows how to run a route. Hands are natural and soft. He's an OK athlete.
Justin Jefferson is a good route runner with very good hands. Again, not a deep threat.
Donovan Peoples-Jones - sneaky decent route runner with very good hands. Not great at either, but very good.
Tyler Johnson - a serious route runner with good hands, the occasional drop has to be from concentration issues. Again, not a super athlete, but thats what you asked for.
James Proche - best hands in the draft, needs to polish the heck out of his routes though.
Don't waste your time looking back, you're not going that way. - Ragnar Lothbrok