Does the company still have the resources it needs to develop (hiring, investment) when carrying such a high level of debt ?

Senior debt is split into two tranches: one amortisable, the other repayable on maturity. This second tranche has no impact on the company's cash flow. The amount of debt amortisable annually is calculated in accordance with the business plan produced by management. The business plan includes the projected hiring and investment necessary for growth. Debt maturity dates are chosen to allow a safety margin. Often the company is provided with a line of bank financing to cover external growth and acquisitions. Finally, the investment fund may inject more capital during the lifetime of the LBO to meet a specific need.