Louis van Gaal has taken fresh aim at former club Manchester United.
The experienced Dutch boss replaced David Moyes at United in 2014 and spent two seasons at Old Trafford before being sacked.
Van Gaal told Voetbal International: "Manchester United did not have the qualities to become champions and had an outdated selection with 10 players over 30, five over 35.
"So I told them I was going to rejuvenate and which players should come. I didn't get one of those.
"Then you end up in a different segment and as a coach you have to push your boundaries. You don't expect that at the richest club in the world.
"A turnover of £600 million and can't buy the players you need. You should buy number one and not number seven.
"Of course, the selling club also thinks: 'If you are so rich, you also have to pay the highest amount imaginable for a player'. That was what happened with transfers.
"Then you have to do with the numbers seven or eight on your wish list. For which you actually pay way too much money, on which the coach is judged and convicted."