The England international joined Everton on loan from Tottenham Hotspur for the rest of the season on transfer deadline day.
“Mark would have brought Aaron Lennon in if he could have done, and we were happy to support him in that," Coates told The Stoke Sentinel.
"He would have added to the squad, but he has chosen to go to Everton and so you move on.”
Lennon would have been a good signing for Stoke and would have added depth to their squad.
The 27-year-old may not be one of the best wingers in the Premier League, but he has pace and experience, which would have been crucial to the Potters’ chances to a top-10 finish in the Premier League this campaign.
Stoke are an ambitious team and are having a good season in the Premier League, and Lennon would have done well to joined them.
Having said that, Everton have their own attraction. Despite the well-documented struggles of the Toffees, Roberto Martinez’s side play good possession-based football, and Lennon would give them a new dimension.