West Brom boss Tony Mowbray has questioned Gianfranco Zola's appointment at West Ham - as the Italian doesn't hold a necessary coaching licence.
Mowbray, who paid for his course - £7,000 - when his club Ipswich were in administration, said: "I won't sit here and say it's wrong. But it was ultimately beneficial to me because the chairman of Hibernian would not have employed me without my licence.
"It's something the English FA have to look at again. They did try to start out by taking a very hard line.
"But then they made an exception for Glenn Roeder on health grounds, let it go with Gareth Southgate because he'd been playing for England for 10 years and said he hadn't had time, and now there's Paul Ince and Gianfranco Zola.
"They will draw the line somewhere, otherwise you open the floodgates."