Much like the Giants, the Philadelphia Phillies have had a bumpy go of it in April, having already fired manager Rob Thomson two days ago and installing Don Mattingly as the club's interim manager. He debuted on Tuesday with a 7-0 dismantling of San Francisco, despite the Golden Gate Nine sending normally reliable righthander Tyler Mahle to the hill. Mahle (5 IP, 6 H, 5 R, 5 ER, 3 BB, 3 K) started solid, but fell apart at the mid-way point in the game, finally giving way to the stacked Philadelphia lineup. Brandon Marsh had a sacrifice fly in the fourth inning, and the Phillies plated four more runs in the sixth. Bryce Harper and Adolis Garcia both hit an RBI double, and  Trea Turner notched four hits in a contest that saw The Phils (now 10-19) sit at the bottom of the NL East, and there's plenty of gloom and doom in their clubhouse, as well, as their current skipper explained when discussing Thomson's termination.…