Sure, but if a job fails for a transient reason, there should be a way to retrigger it - that is just a basic feature of nearly all CIs, no matter how many jobs there is.
Of course, and you can - you can manually hit the + button to retrigger a build, and if you want specific inputs you can select the exact one you want in the resources tab (which is slightly less common, since you probably haven't been committing since your build broke, but it's totally doable).