If they are slotting a rookie into their starting lineup then I doubt they will pick Kidd-Gilchrist (who is more of a SF at 6'8).
They would be much better off taking Bradley Beal to slot in as the starting 2 as he provides the one thing they are really missing... Shooting.
He is being talked about as the best pure shooter to come through the draft since Ray Allen.
With Wall, Ariza, Nene and Okafor the Wizards are clearly missing someone who can space the floor and shoot the 3-ball. There are questions over MKG's perimeter offense and his shooting technique, so why take a "project" (I use this in the loosest sense of the word) when you could slot a lights-out shooter into that spot.
Wall
Beal
Ariza
Nene
Okafor
This is a much more balanced starting 5, with penetration, post scoring, rebounding, defense and shooting all accounted for.