I just don't see how a trade makes sense for the Texans, especially since O'Brien is gone.
If he was still there I could see Watson and a future 1st for Kirk Cousins and a 7th. But now?
IF the Texans trade Watson, they immediately need to replace him with a top 10 QB. Assuming they were able to get the Jets pick, for example, and assuming Fields is there and works out well, they basically hope to eventually break even, once Fields develops.
Look at it this way: the Texans have a million dollars, and they would be investing that million for a CHANCE at a million. All risk, little upside.