XFL is quite entertaining. They definitely should keep pushing that aspect. We know the quality won't be near NFL quality so its other aspects that aren't pure gimmicky that will see it as an option away from the NFL.
People need to stop the narrative of this being some sort of farm system for the NFL tho. It will never compete with college football on that level and will be seen in the same light as the CFL and other leagues if that is their objective. Sure some players will use it as a way to jump back in the NFL but that shouldn't be the league's goal.
But yea absolutely they need to do like the MLS and gather a few big names, even if out of their prime, to help with the overall headlines, especially at QB. Manziel, Tebow, Terrelle Pryor, Denard Robinson, etc. The star of your entertainment league can't be Landry Jones.