You almost always want to sell the portfolio firm after three to five years. It is therefore in the PE firm&#x27;s interests to have the firm healthy and thriving. The idea is very definitely not to cripple or harm the portfolio firm.<p>For an excellent example of best practice look at what Blackstone have done with the Hilton Group, Wolfskin, Merlin Entertainments ( owner of Legoland, Madame Tussaud&#x27;s, London Eye  ), the Bujagali Hydropower Project in Uganda or the Moser Baer Projects in India.