Live feed08:17:07·1304dNEWSReleasevia QuantisnowManTech Announces Kevin M. Phillips Will Retire As CEO And President And Will Transition To The Role Of Chairman Of The Board Of Directors; Matt Tait Will Succeed CEO And President Effective ImmediatelyByQuantisnow·Wall Street's wire, on your screen.MANT· ManTech International CorporationTechnology