Port coach Scott Cooper breathed a sigh of relief as his men defeated visiting Nakhon Ratchasima 2-0 in a Thai League 1 battle on Saturday night. The win came less than 24 hours after Teerasak Pho-on resigned as PT Prachuap coach following a 5-1 hammering at the hands of Ratchaburi on Friday night. Teerasak is the fifth coach to go out of work this season after the sacking of Makoto Teguramori (BG Pathum United), Carlos Parreira (Khon Kaen United), Thawatchai Dumrong-ongtrakul (Nongbua Pitchaya) and Dusit Chalermsan (Lamphun Warriors). Port had gone two games without a win to put pressure on C…