I work in a small team of four. We are all at the same level and have the same responsibilities. Our work is all interconnected, it's one big task with several steps and we each pitch in and help with all of the steps within the task, if that makes sense.
We had a day where we made a lot of mistakes and our manager had to have words with us. It was awful. I ended up secretly crying in the toilets on my lunch break as I felt really guilty and incompetent (I know, embarrassing but I'm quite sensitive). However, I went through it all in my head and I'm pretty sure I didn't contribute to any of the mistakes, but we are viewed as a team with equal responsibility so I just brushed myself off and moved on.
Since then there have been a few incidences of mistakes. They were not my mistakes and my manager knows this. My manager spoke to me the other day off the record and said he is considering moving one of my colleagues to a different department as he feels that this colleague is not performing well and not working well with us as a team. I didn't really say anything as I felt awkward speaking negatively about a colleague, it was also after a specific incident that I was not present for so could not comment on. My manager said he doesn't want me having to shoulder the responsibility of everything. However, that colleague is still working with us so I don't know if my manager changed their mind or if they are giving them another chance.
My manager also asked me on on one occasion to help one of my colleagues as they were struggling/being slow. I tried to help my colleague. He didn't want to say anything to my colleague so asked me to do it quietly and without making a big deal about it which I agreed to do. But my colleague ended up feeling frustrated with me and I felt awkward like I was hovering over their shoulder.
Since then I have realised how stressed at work I am about two of my colleagues. I am constantly looking over at what they are doing to make sure they are doing things the right way. For example, I am opening up the documents they produce and quickly checking them when I have a spare moment. A colleague made a mistake yesterday and when our manager found out he talked to us as a group again and said it's not acceptable. It really knocks my confidence even though I know that it's not my responsibility or my mistakes that are occurring.
I need to speak up to my manager, don't I?