1. Yes, they got leads. But the pen was often expected to hold small leads for 4+ innings. Obviously, that will lead to more blown saves. Remember that all blown holds are counted as blown saves.
2. The pen was overused, which makes them less effective. They have pitched far more innings this year than they had at the same point last year. If they were not so worn out, which essentially began the first week of the season, some of those blown saves might not have happened.
3. Last year, our starters went deeper and our offense tacked on. That's not happening consistently this year, which leads to not only to misuse of the pen, but putting the pen in many more high leverage and stressful situations.
I'm not saying our pen has been great, but I honestly believe that if the starters pitched like they did last season, the pen would be a non-issue.