Wrong. Any sale back to company directors must be for full market value. Administrators are under a strict duty to ensure that the assets are marketed to outsiders before any final sale back to directors are agreed.
And remember - you must have on-going funding available to buy back the assets and continue to trade, so directors need to be 100% certain that they can pay for the assets before entering into any agreement to buy back.
Administration is not as simple as you may have been lead