(adds quotes, detail) * Gentry leaves after compiling 158-144 record * Interim coach to be announced within 48 hours Jan 18 (Reuters) - The Phoenix Suns have ended head coach Alvin Gentry's tenure of almost four years in charge of the Western Conference strugglers after both sides "mutually agreed to part ways", the team said on Friday. The Suns have made a poor start to the campaign and sit bottom of the Pacific division with a 13-28 record, which is also the poorest in the conference.