Not much the Titans can do at this point. Robinson went all in this past season and the team couldn't deliver. Now the Titans are in a mess of their own making. It's on Robinson to try and fix this mess he created.
The Julio trade cost them a second rounder in this years draft, and Robinson absorbed Julio's salary when he acquired him. This led to Tannehill restructuring to keep the Titans under the cap and now his cap hit is huge. Restructuring Byard can only help so much and the Titans have given out several high priced contracts/extensions in the past few years. Combine this with the last two first round picks being completely non productive, then you got the situation the Titans are in.
Honestly, this past season's team was likely the best chance the Titans had to win a championship. Just have to see how things go from here on out.