That makes some sense. Use him carefully, keep him healthy, show that he can still play at a high level - then trade him after you've gotten some use from him this year. It's a risk but perhaps worth taking.
I see that the Packers also claimed a center off waivers from Tennessee, who will take Garvin's spot on the roster. I also see some fumbled exchanges between Myers and Love. While I hope Myers works out, he seems the weak link on the line so far.