"He's not starting because he is inexperienced - but he is brilliant at what he does in the moment. In 90 minutes he might not give you what he is giving you as an impact off the bench. That's clever management.
"I'm very aware that being a manager you have to put people in the right position and that is part of your skill. So I would give Marcelo Bielsa credit that Nketiah is coming off the bench and scoring.
"Some young players who start regularly lose their efficiency. They think they are ready for the 90 minutes but they aren't quite.
"I fully understand what Bielsa is doing and fully respect it - because he has been a manager for a long, long time.
"At the minute - I wouldn't change a successful situation. Nketiah is still a very, very young man and every time he comes on, he scores. So why change anything?"