Hawthorn coach Alastair Clarkson highlights James Cousins' tagging job on Zach Merrett as an example of what is possible when faith is shown in youth.
Cousins, a 20-year-old in his sixth match, was the first of two late additions to the Hawks' squad and impressively kept Essendon's All Australian midfielder to only 17 disposals and one clearance.
"Young Cousins got a role today on Merrett, which was only decided on about an hour before the game," Clarkson said.
"He, on very little preparation, has come in and done a role for us on a very important player for the Essendon side."