Until then, players leave impressions on the manager and his staff based on various factors, including sample size.
"It's spring and you have to take [sample size] into account," Gardenhire said. "Veterans get a little more leeway than kids, because veterans work at their pace and have done this before. Kids come out here and put a little too much pressure -- and hopefully they won't."
A quarter of the way through Grapefruit League play, Gardenhire has been pleased with the position battles and his team's fielding, which ranks sixth-best in fielding percentage (.982).
The emphasis continues to lie in lengthening pitchers, strengthening arms to the point where they can throw six innings or between 90 and 100 pitches.
Catcher Chris Herrmann and first baseman Brian Dinkelman started their first games of the spring on Monday afternoon.
"We're seeing so many different people and so many different arms, and a lot of young kids mixed in with some veterans," Gardenhire said. "We like the different arms we have. We definitely have power arms -- that's exciting."