Potter noted he'd like to be involved in less of a "protracted, long-winded negotiation" but that most player deals in the NRL were done that way.
The first-year coach added that the drama was not impacting Marshall or the team, with Tigers captain Robbie Farah agreeing on both counts.
"Either way, I just hope it's sorted sooner rather than later," Farah said. "Hopefully it's a good outcome for the Tigers and Benji will be here for the rest of his career.
"He's handled it pretty well - I know he's kind of put it on the backburner and hasn't got too caught up in it. He's let his manager take control of that, and it's probably showed in the way he's played the last few weeks."
Farah credited Marshall, along with the side's talented young stocks, for triggering a resurgence that has netted four wins from the past five matches.
"There was a period there where Benji and guys like Adam Blair were getting criticised, but they've turned their form around now," he said.
The Tigers will aim to keep their hot run going tonight at Cronulla.
"As soon as we drop the next game, you're looking at the table and doing the what-ifs... we need to keep winning," Potter said of his 14th-placed team.
- AAP