New Zealand great Nelsen took the reins from Paul Mariner during the offseason and managed to guide the Canadian club to a win in just his second game in charge, delighting defender Darren O'Dea.
"From Day 1, since the new manager has come in, there has been a certain type of way that he wants to play and we are building to that every day and we are improving," O'Dea told reporters.
"We've beaten a very good Kansas [City] team today. It is the gaffer, but also the players that he has brought in as well. Players like Danny Califf at the back and Robert [Earnshaw] up front. It's a bit of experience and a bit of mental toughness and we probably lacked that last year."
"We now need to keep our heads down and stay grounded."