I don't see any way the Brewers can extend Burnes. He's going to be way out of their price range, especially when you look at what of the FAs have been getting this year so far. I think of the two, if they are looking to extend someone, it's Woodruff. He gets maybe 2/3 or less of what Burnes will command. As far as trading Woodruff, I think your trade might be viable if the Brewers were completely tanking, but even then I don't see the value. Mauricio is a big swing, low OBP, low average shortstop. He's played only 3 games at 3rd and was so bad the Mets gave up on the idea. Allan is 18 and no help for years, if ever. Based on what he's done, Butto has a ceiling of #5/long man. Diaz too is just starting his career and really struggled at A level. He is also no help for years, if ever. Vientos is a start, but he would get a look at 3B first.