Shields is a no go for me this year. He had a freak season with his lowest ERA, highest Ks, most Wins, and so on. If you expect even close to those numbers you will be disappointed. Wright hasn't had a great, good, but not great season in several years. I wouldn't stake too much in him either.
Ryan Roberts is decent enough to be Wright-like, so don't give AGON for those two. AGON is a mighty beast who proved that with a more "friendly" ballpark he can be an absolute monster. AGON is a #1 pick, Wright and Shields are probably #5-6 picks, it would be crazy to do.
Also, side note, don't forget that if you get the #14 pick as well you have to drop 2 guys immediately after the draft is finished so say bye bye to round 24 and 25.