So, why did the most recent trip to Milwaukee serve to fuel Fiala, as opposed to frustrate him?
Admirals coach Dean Evason said he didn't necessarily see a radically different player this time around, but did notice a few changes in Fiala. Perhaps the most important, Evason said, was a more positive attitude.
"When you go back to the time that Kevin was here before, there were several teaching situations as far as growing up and being a pro," Evason said. "This last time, we may have had one situation that had to be tweaked. After that, he skated, he worked and he played the game the right kind of way.
"I think it's simply maturity. He's growing up. He's still young, although we've seen him for a while. But it's just a matter of maturity, and then having the mindset to use your time here to your benefit."
What also helped Fiala in his most recent trip to Milwaukee was the realization that he isn't the only highly talented player - nor will he be the last - to hone his skills on the AHL level before making a regular contribution on the NHL level.
For example, Predators forward Austin Watson, like Fiala, a first-round pick, spent three full seasons in Milwaukee before breaking into the Nashville lineup regularly in 2015-16. He was sent to Milwaukee again this year at the end of camp - even exposed to waivers - but has battled his way back to the NHL after working hard in the AHL.
"I think everybody's first thought is they want to be in the NHL, and anytime you're not, it can be frustrating," Watson said. "But you have to control the things you can. Your play and the way you carry yourself is in your control. Kevin's done a great job of that this year, just sticking with the plan and having a great attitude no matter where he is."