My own opinion is that of the three Crawley has the best chance to have an NFL career. I thought the DBs at CU were put in a bad position with Man to Man coverage and lack of pressure on the QB. Crawley has the measurables and he is a good cover corner. My concern with Spruce would be that in PAC 12 play defenses made him pretty much a non factor. Every receiver with poor 40 times is being projected as a slot receiver. Nembot is a project...a guy that started for four years and is still a project does not have that much upside, but he does has size and strength.
Strongly disagree on all counts. Crawley has measurables but lacks football instincts. I think he plays the one position at CU where his coaching was actually high level. I can see him hanging around a bit, but I don't see him being an impact player.
Nembot plays a position that takes time. He showed continued improvement. He will have a long NFL career if he chooses to play that long.
Spruce will find a spot in the right system. Great hands. Great discipline and smarts.