Harrison dropped a bombshell on Sunday when he sent United boss Chippa Mpengesi an email announcing his intention to leave the club.
Harrison had his first meeting with the Arrows players on Tuesday afternoon.
“No. It was not a difficult decision to make,” the former Mpumalanga Black Aces coach tells KickOff.com. “Every sportsperson likes to work at the highest level. And the PSL is the highest level in local football.
“I am very happy about the great opportunity of coaching in the PSL again.”
Harrison says he has already noted a few weaknesses in the Arrows team, and promises Abafana Bes’thende fans an exciting brand of football.
“The team needs to be little bit more organised and tight at the back,” he says. “We also need to be more aggressive up front.
“Every coach has a different way he wants his team to play and I am no exception. Everyone knows that all the teams I have coached always play attractive football and this is what I want Arrows to play this season.
“It’s important for the spectactors to enjoy good football.”