Mark Vientos, once a promising player for the New York Mets, has recently faced a significant decline in performance. What was once a bright start has turned into a series of disappointing games, raising questions about his future on fantasy rosters. Meanwhile, Luis Robert of the Chicago White Sox, despite a slow start, is still seen as a valuable asset due to his previous season's success and potential for upside. Other players discussed include Jorge Polanco, who has struggled to stay consistent; Felix Bautista, who is coping with the challenges of returning from injury; and Sandy Alcantara, whose recent performances have created concerns for fantasy owners. Decisions around dropping or holding these players are critical as the season progresses.