Mets manager Terry Collins said during a radio interview on WFAN Tuesday that he will use a closer by committee while Bobby Parnell (neck) is out. David Aardsma could be first in line, as he received a save chance last week with Parnell out (though he blew it). LaTroy Hawkins will also be in the mix, as will southpaw Scott Rice. It's not clear how long Parnell will be out.