LA Dodgers manager Dave Roberts drew the ire of fans for his decision-making in the 5-3 loss to the Pittsburgh Pirates on Thursday. The Dodgers offense, which was kept silent until the eighth inning by Paul Skenes & Co., erupted with a three-run rally in the ninth, led by a Mookie Betts home run. However, an earlier decision by Roberts came back to haunt them.Roberts replaced rookie catcher Dalton Rushing with Ben Rortvedt for the bottom of the eighth and top of the ninth. Rortvedt then came to bat as the potential tying run in the ninth and struck out.Roberts cited workload management as the reason for removing Rushing before the critical ninth inning, but fans believe it was a costly mistake."Roberts is a lost cause. He's not intellectually capable of managing this team. It will sure be nice if some of you in the media started to take Mark Walter to task re why Roberts hasn't been fired," one fan commented.David Wohl @DavidWohlLINK@ByJackHarris Roberts is a lost cause. He's not intellectually capable of managing this team. It will sure be nice if some of you in the media started to take Mark Walter to task re why Roberts hasn't been fired."He's conceded so many games this season I've lost count," another fan wrote.Equality 7-2521 @Equality7d2521LINK@ByJackHarris He's conceded so many games this season I've lost count."Dave always gets out managed because he lacks intensity. Takes his foot off the gas. That was OK when we had a comfortable lead, but we are sh*t," another fan wrote."Just another example of how Dave will always throw out a BS excuse for his poor decision making. All his poor decisions are 100% justified. Always. I suppose Dalton was so tired he was trying to take a nap on the bench. He’s 24. Oh come on man. Rushing recently just hit a HR," one fan posted."Another reason Dave Roberts is unfit to manage this team. One innings rest isn't going to do much for Rushing, but it did take the bat out of Rushings hands in the 9th. I don't know if Pirates had another leftie in the pen, but I do know i'd rather Rushing batting than Rortvedt," one fan commented.Pirates completed the sweep against the DodgersThe Pittsburgh Pirates managed to win all three games against the Los Angeles Dodgers at PNC Park. They won the first game 9-7, followed by a 3-0 win on Wednesday and a 5-3 win on Thursday.Paul Skenes was the star of the final game. He threw six shutout frames, recording eight strikeouts while allowing only two hits and one walk. On offense, the Pirates received contributions from Bryan Reynolds, Tommy Pham, Nick Yorke and Alexander Canario.With the loss, the difference between the Dodgers and the Padres for the NL West lead was reduced to two games.