She’s listing the reasons why they’re doing better at gathering evidence than she is. Her growing hatred of Lottie is an outgrowth of that (seemingly with a bit of a push from her “friend”). She wanted to be the pone to catch the jewel thieves, and it irks her that Lottie’s doing so much better than she did while ostensibly doing so much wrong. It’s a bit like that Simpsons episode where Homer drives a far more capable co-worker insane by constantly getting away with things, being incredibly lucky, and succeeding despite his complete lack of competency.