Promptly execute and deliver at its expense all further instruments and documents and take all further action that may be necessary and desirable or that the Administrative Agent may request in order to (i) perfect and protect the security interest created hereby in the Pledged Collateral of such Pledgor (including, without limitation, any and all action necessary to satisfy the Administrative Agent that the Administrative Agent has obtained a first priority perfected security interest in all Pledged Collateral subject only to Permitted Liens); (ii) enable the Administrative Agent to exercise and enforce its rights and remedies hereunder in respect of the Pledged Collateral of such Pledgor; and (iii) otherwise effect the purposes of this Pledge Agreement, including, without limitation and if requested by the Administrative Agent, delivering to the Administrative Agent upon its request after the occurrence of an Event of Default, irrevocable proxies in respect of the Pledged Collateral of such Pledgor.