Arsenal manager Arsene Wenger has compared international managers to joy-riding car thieves.
Wenger has often expressed his frustration at seeing his players return tired or injured after international duty.
'Gerard (Houllier's) thoughts on the matter echo mine,' Wenger said. 'He thinks that what the national coaches are doing is like taking the car from his garage without even asking permission.
'They will then use the car for 10 days and abandon it in a field without any petrol left in the tank.
'We then have to recover it, but it is broken down. Then a month later they will come to take your car again, and for good measure you're expected to be nice about it.'
Wenger also complained that international managers fail to contact their club counterparts, with one notable exception.
'Sven-Goran Eriksson was the only one who used to come and talk to me regularly,' Wenger added.