However, he has cooled any talk of a large-scale overhaul, telling BeIN Sports that a 'maximum of two or three' signings will be made.
'We cannot spend as much as many other clubs because some clubs have external resources that allow them to be basically unlimited,' he added.
'We can spend money because we have managed the club well. Let's not forget the amount of money spent is not a guarantee of success.
'We have to be clear what we understand as a big signing. Is [Rob] Holding a big signing for you or not?
'When you buy a player for £40m, everybody will have at the start a positive judgement. When you buy him for £2m, he can't be good?
'That means a big signing is not necessarily linked with the amount of money spent.'