There seems to be an epidimic going around Major League Baseball in the first two weeks of the 2017 season and the Cubs are right in the middle of it. Bullpens are struggling at an alarming rate, as MLB Network Radio pointed out Monday morning: MLB teams are converting just over 60 percent of save opportunities and bullpen ERAs for the entire league sit at 4.10. So it’s not just the Cubs, who struggled holding leads over the weekend as the bullpen gave up 11 runs in 5.1 innings Saturday and Sunday. The Cubs have converted just two of their six save opportunities, but there are four other teams struggling just as badly — Rangers, Mariners, Blue Jays and Marlins. So what does this all mean? Nothing.