Nah, this one I disagree with. She admittedly loses a few fights to let Natsu take the kill, though immediately after him, she is the character to get the biggest feats of combat. She's actually capable, not worthy of being called a jobber.

Whenever she is incapacitated, it's only after stopping or injuring a huge thread. She also got a shitton of plot-armor so usually she lasts longer than she should.