David was the manager for The Tourists until he parted company on 8th November 1978. There is a handwritten letter from Annie Lennox that confirms his terminataion. The letter was auctioned in 2013 by Bonhams and reached a price of £375.
Wernham went on to tour manage the likes of Peter Gabriel, Billy Idol, Big Country, Tears for Fears, and Alison Moyet, and helped guided the careers of pianist and vocalist Oleta Adams and singer songwriter DesÂ’ree, among others,.