Yeah they knew he was a project. A project who very well could pan out.
But i guess my point is that you could have gotten this project three rounds later.
Maybe, maybe not. Quick fits the physical prototype that many teams look for in a starting WR, and some other team may have taken a chance on him in the 2nd, 3rd, or 4th rounds. I don't know what intell the Rams had on wants of other teams. They had a whole night to think about it and still chose Quick on the draft's second night.