Uwe Rosler has been granted permission to speak with Wigan Athletic regarding their managerial vacancy.
"We were given permission quite quickly by Brentford. They conducted themselves very well," Whelan told the Daily Mail.
"I'm confident of landing him and hopeful that we can get this done and dusted on Friday morning. I'm not hanging around.
"Getting Uwe in is my sole intention at the moment. He is a good young manager whose progression I've followed closely.
"I don't really know the exact amount of compensation but would estimate at around £200,000."
Rosler, who had a successful career with the likes of Manchester City, FC Nurnberg, Southampton and Kaiserslautern, took charge of the Bees in June 2011 and has guided the club up to fourth on the League One table.
He kicked off his managerial career in 2004 with Lillestrom before taking in spells with fellow Norwegian clubs Viking Stavanger and Molde.
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball