His clients include James McFadden, Joey Barton, Henri Camara, Scott McDonald, Jean-Joël Perrier-Doumbé, Charles N'Zogbia, Tyrone Mears, Amdy Faye, Ross McCormack, and Pascal Chimbonda.
[3] McKay was one of the agents investigated by the Quest team, led by Lord Stevens, which looked into allegations of "bungs" and fraud in transfers.
[5] On 1 February 2008 McKay won substantial libel damages against the Daily Express over false claims about his transfer dealings.
[9] With the help of McKay, Doncaster Rovers brought in several "big–name" players in on loans and short-term contracts to try and rescue the club's Championship status,[10] including El Hadji Diouf, Pascal Chimbonda, Herita Ilunga, Carl Ikeme, Frédéric Piquionne, and Habib Beye.
[12] The club's relegation led to criticism from some supporters regarding McKay's recruitment strategy, though other factors were also cited as contributing to the team's performance.