No. Lots of things went wrong down the stretch last year that contributed to the collapse.
But when that game happened they were playing one of the teams that they were jockeying for the final wild card spot with, had a solid lead, and Schreiber had somehow managed to eek through an inning in which he had absolutely nothing, and everyone could tell.
Then Cora left him in for a second inning, even though they had a pretty well rested bullpen.
I was responding to a post that was talking about Cora's BP management, but "couldn't think of a specific instance". I pointed out a specific instance. The team was 57-51 at the time and had lost 3 of 4, but were still only 1.5 games out of the wilc card that day, and had a chance to win to stay within 1.5 and put a serious dent in Seattle's playoff hopes (they were 3.5 back).
Schreiber pitched the 6th and had absolutely nothing, letting up a double and a home run to allow the Mariners to pull to within one, after a really solid performance from Kutter Crawford. Instead of going to someone, anyone else, for the 7th inning, he left Schreiber in to allow the first two batter to reach before bringing in human gas can Richard Bleier. Martin, Winkcowski and Jansen had pitched the day before but the rest of the bullpen was rested. There was no reason to go to Schreiber for a second inning of work, especially since he was only three games into his return from an injury that kept him out for 2.5 months.
It was bullpen management at its worst, and while I don't "blame" the rest of the season on that one singular point, it was a turning point for me, and once the losing streak it started was over, the team never gave a hint of competing for the Wild Card again.