Yes the Seahawks can be a threat to the Rams this year- a QB that can play and improvise, with a defense that can keep them in every game, and history shows the Super Bowl loser rarely gets back to next year’s Super Bowl.The Texans had been in talks with the Dolphins for Tunsil for a long time. I believe they were trying to trade Clowney there in a move that would include Tunsil. Problem was Clowney made noise about the idea he would never report to the Dolphins either and so the Texans ended up having to deal away two first round picks and send Clowney up to Seattle.
As an aside look out for the Seahawks, they have quietly assembled a ferocious front seven on Defense and are a better team it looks like coming into this season than they were last season. Good chance they wrestle the division title from the Rams and could be an absolute terror in the playoffs with that defense.
This means the Texans are in "win now" mode and probably believe they have or are close to having a team that can compete for the Super Bowl. Watson needed O-line help, he got some, but with trading away that group of picks I think it also signals the Texans brass is giving O'Brien a short leash.