Exeter City director of football Steve Perryman praised boss Paul Tisdale's team selection following their 2-1 derby win at Plymouth.
Tisdale surprised many by choosing young forwards Jamie Reid and Ollie Watkins to face the League Two leaders.
Reid had just returned from a loan spell at Truro City, while Watkins played for just the seventh time.
"We made a lot of decisions about the training and the selection and you have to say it's been a success," he said.
Tisdale left out Clinton Morrison, Alex Nicholls and top-scorer Tom Nichols for the clash with Exeter's biggest rivals at Home Park.
"The manager's had a lot of thinking to do since last Saturday and it's borne out now," Perryman told BBC Radio Devon.
"His thoughtful week, bringing in two young players who have shown that they deserve a chance.
"But the people that have come out, they're not poor players, we had some excellent players not even on the bench."
Perryman hailed striker Reid, who scored three goals in five games during a loan spell at National League South side Truro, having recovered from a year-long hip problem:
"Well done Truro, because he left in enough form for us to think he wouldn't be in our selection plans.
"But he looked like a first-team player for sure against a very competitive back four and he competed with them.
"His running was evident and he's played a number of games for Truro and he's got 90-plus minutes in him," Perryman added.