Nicky Butt, who is Manchester United's head of first-team development, believes that Adnan Januzaj should have become a "world superstar."
Man United will release funds from their war chest as Ole Gunnar Solskjaer continues his plans to bolster the Red Devils' squad options.
Man United star Paul Pogba, whose current deal expires next summer, has been linked with Paris Saint-Germain, Real Madrid and Juventus.