Exeter manager Paul Tisdale said a pep talk with striker Alan Gow was behind the Scot scoring both goals in City's 2-1 win over York.
The former Rangers striker has struggled to find his best form since returning from a serious injury, but netted within 20 seconds of coming on as a substitute against the Minstermen.
Exeter were trailing to Ryan Jarvis' 17th-minute tap-in when Gow broke the offside trap and flicked the ball past the advancing Michael Ingham to draw Exeter level.
And the 30-year-old sealed the win with a fantastic low strike from 20 yards to make it three wins from three home games for Tisdale's team.
"We spent a really hard week on working with Alan and what he does when he comes on the pitch so that when he comes on, he makes an impact," Tisdale said.
"We sat him down in my office and discussed that when he comes on and he plays on the right, or up front, or on the left, what is he going to do and it was a really useful chat.
"We want him to be focused on what he can do because it can be hard for a player to sit there, sometimes they can drift and go off the boil. But he is on the boil at the moment, so that was a really useful chat."
York boss Nigel Worthington was disappointed not to have taken anything from the game after an encouraging performance from his side.
"I was delighted with the performance - there was energy, commitment and a lot of good quality stuff in there, so form that point of view it was excellent," he said.
"A draw would have been a fair result. But if you concede two and score one then you lose the game. I thought it was a good game of football, very competitive and it was end to end."