|关注一亩三分地公众号：Don't know if this is gonna work for her or not but this does not sound like a general strategy for everybody. RL is a proof of your capability and potential or motivation for higher level education in certain area. So I guess one strong RL should be from somebody knows you and your skills well. In other words, recommendations from people who you worked with would be much more stronger than anybody else. If it happens that your recommend-er is somebody with big-name in your area, then you are lucky and RL from him/her will also be more persuasive. But again that is not normal case.