Manchester United manager Sir Alex Ferguson has allowed highly-rated midfielder Ryan Tunnicliffe and centre-back Scott Wootton to join Posh on loan.
The Premier League champions also sold striker Nicky Ajose to Peterborough.
Ferguson junior, who also took United players on loan during his previous stint as Preston boss, told the Evening Telegraph: "The comments don't bother me in the slightest.
"Every club has the right to go in for these players, but my father knows they will be in good hands with us and that we will try and improve them. Many managers use their contacts in the game to get players in on loan so it's not an issue for me at all.
"We have paid for Ajose anyway so that's a different matter, but I'm just happy that we have two lads with huge potential on loan at the club."