I can only imagine how Dave would have went off had they given the title back to Bockwinkel, who was perhaps the only viable option at that point. Hansen was still 6 months away. Martel's main challengers from July through the end of the year included Hayes, Zbyszko, Zurkov, Bockwinkel, and Hansen starting in September.
Gordy, Lawler and Jumbo also had shots, but one-offs. Not sure who could have possibly been plugged into the Champion role at that point, unless you gave it to Zurkov and flipped it right away to Slaughter.
Of that list Gordy would seem like the best option. Why not?