So out of curiosity, I plugged the three names Rosenthal specifically mentioned into this tool: https://www.baseballtradevalues.com/trade-simulator/ If you're not familiar, It's pretty cool. It uses established research to convert prospect rankings into dollar values, and for MLBer does the old Dave Cameron dollars/WAR move. It's certainly got problems, any sort of tool that completely strips context out of the equation will, but I like it a lot as a quick and dirty way to sense check these sorts of hypothetical deals. Anyways, when you plug the three names Rosenthal mentioned into the tool, you get a value that matches what Contreras is worth. The tool gives Willson $28.3M in surplus value, while the prospects are at $30.4M. Considering how many assumptions go into something like this, that difference is negligible. Considering this is Rosenthal and how connected he is, I wouldn't be surprised if this is the current proposal on the table from one of the sides.