Or Imai if you do that. But Rutschman is just the biggest name/highest ceiling. There would be other options, albeit also at a decent trade price if they are acceptable 100-game catchers.
JT didn't sign until January 29 last time, and that was with McCann already off the table for months. They may be at a standstill, but I doubt he really wants to be anywhere else, nor has an offer from another team he can't refuse.
We all want Marchan to become the next Chooch but he's still not as good as JT even defensively, and his bat is so poor that even "coming around" might only be 85 OPS+.