How do you know?
Im saying if they went to him and indicated they would discuss a contract extension this summer and he said, no I intend to go to Free Agency and explore my options, then they could counter with, well, give us a list of teams and let us explore it now. I suspect he is happy here but I dont know that for sure. He might want the chance to go to a cup contender. he probably doesnt want to go to Vegas.
My other suggestion was getting him to waive with the intention of making a deal with Vegas not to select him and then providing Toby with an extension. But they can do the same with Myers. Except Myers is worth more than Toby so whatever you have to give Vegas to back off will cost more for Myers than Toby.