The positional issue doesnt really factor in with Pittsburgh. There are questiosn about Alvarez sticking at 3B long term before Rendon entered the picture. He'll just slide over to first.
As for us ... I like Bauer, but he's not worth the 6th pick. He simply doesnt have Lincecum's stuff, despite the frame and delivery. At 23 sure, not at 6.
I just think Bauer is better than Sonny Gray. My top 10 pitchers right now goes Gerrit Cole>Matt Purke>Taylor Jungmann>Trevor Bauer>Archie Bradley>Daniel Norris>Danny Hultzen>Dylan Bundy>Sonny Gray>Alex Meyer