Work Related Problem

My work has been a mess lately. My team members has been making a lot of mistakes and of course, as their superior, it's all reflected on my performance. I don't know what I should do about my team. I feel guilty firing them. Besides, I won't have a team then.



For situations like this, what do you think should I do? Should I just try to smooth things over with my Boss? How should I discipline my team members?