The coaches, brought to the club by Iain Dowie, took the team for the 0-0 draw with Cardiff and the 5-0 home drubbing by West Brom and will continue their roles at last until the end of the season.
Like the playing staff, new boss Chris Coleman will decide whom he wants to keep and who he wants to bring over the summer months.
Coleman said to the BBC: "We'll do the best we can until the summer and then if we think we can add staff we'll do so. "We need to go down a different direction otherwise we may as well have had Iain Dowie still here."