I think a lot of folks here have an inflated sense of how valuable draft picks are vs. an elite franchise QB.
Draft picks are only as valuable as the players you pick with them. Short of hitting on a franchise QB with one of the 1st rounders we'd be giving to Houston, Watson's value far exceeds the players we'd get with those picks, save for some kind of miracle run of drafting that rarely ever happens in the NFL.
I, for one, don't think it'll take quite as much to acquire Watson as many seem to. The 3 1st rounders thing seems to be assumed, but is just speculation. Watson's desire to get out does reduce the leverage the Texans have in trading him, as does his no-trade clause and the fact that he has to agree to the team he's traded to.
It wouldn't surprise me if the eventual trade - by us or another team - looks a lot more like the Khalil Mack trade to Chicago than something that includes 3 1st rounders and a big name player.