Who is Mrs. Jones from Stormbreaker and what is their importance?

Mrs. Jones is the head of operations for the Special Operations Division of MI6. Mrs. Jones is a motherly type woman who seems to genuinely care about the people she sends out into the field. However, Mrs. Jones works closely with Mr. Blunt and when she is with him she seems to feel the need to seem cold, like him. On her own, Mrs. Jones is kinder and she does the best she can to ensure that her agents survive their assignments. From her, Alex gets a sense of reluctance just before he is sent to Sayle Enterprises, but she never shows him much compassion. Instead, Mrs. Jones sits back and allows Mr. Blunt to blackmail and bully Alex, allowed to only supply him with the few implements that will help him survive his ordeal.