The question then: How much does loading up on relievers at the deadline help? Maton was the only one of the three to make an impact, posting a 2.51 ERA in 31 appearances. Certainly, getting more good relievers improves your odds of success, but any bullpen can get hot for a month. Grades for every big deadline deal »Graveman was the big acquisition, as he had an 0.82 ERA with the Seattle Mariners. Ranking prospects dealt at trade deadline Which future stars are on the move this MLB trade season?