Will the BEC delay recruitment on a TR application so that the employer can request RIR conversion?

According to the Labor Department:

No. Due to the Office of Foreign Labor Certification's (OFLC) intensive effort to eliminate the backlog, it is not practical for the BEC to delay recruitment on applications to await RIR conversion requests. Therefore, BECs will not delay recruitment to allow for RIR conversion. Requests for RIR conversion must be received prior to the beginning of supervised recruitment to be considered. Employers should send their requests and appropriate documentation as soon as possible to maximize their opportunity for RIR conversion.