"Aéropostale Inc. et al. In litigation arising from the bankruptcy of the apparel retailer Aéropostale, Cornerstone Research was retained by counsel for Sycamore Partners, pre-petition term lender and former equity investor in Aéropostale. Cornerstone Research worked with two testifying experts who addressed certain aspects of claims by Aéropostale against Sycamore and its affiliate, MGF Sourcing, a global sourcing company.

The debtor, Aéropostale, filed a motion for equitable subordination of the claims of Sycamore Partners and MGF Sourcing. Aéropostale also moved to disqualify Sycamore Partners from submitting a bid in a sale of Aéropostale's assets. In addition, the clothing retailer sought to recharacterize a portion of Sycamore's pre-petition term loan to Aéropostale as equity. Aéropostale alleged that Sycamore Partners engaged in inequitable conduct by pushing the retailer into bankruptcy in order to buy the company's assets at a discount and by selling the company's stock while in possession of Aéropostale's material, nonpublic information."

how did Cornerstone Research contribute to the case on behalf of Sycamore Partners?