Souliere held Wisconsin to just one goal in Penn State's series sweep over the weekend.
"It's not just the numbers. It's the timely goaltending that I think was really important for him, and it's important for us."
The Nittany Lions moved up in the polls every week since the beginning of the season.
Pickett appeared in every game for the Nittany Lions last season and averaged 13.3 points per game.
Ally Schlegel scored the game's lone goal in the 75th minute of Sunday's match.
Andrew Privett's goal in the 75th minute propelled the Nittany Lions past the Wolverines to close out their regular season.