ScreamGave up on their team despite the countless number of hours the team invested into developing their roamer gameplay. Should stick to playing scout imo.
You obviously know absolutely nothing about saila and why she would leave a team, and to say she just "gave up" is either incredibly misinformed or incredibly biased. Saila is one of the kindest and most dedicated players I know, she worked so hard to improve her roamer gameplay and honestly was a really solid roamer (she's airshot dropped me like 10 trillion times). Arguably the weakest part of her soldier is her jumps, but even then they aren't bad by any means. Her DM on soldier is incredibly good, she hits really solid directs consistently, and her gamesense is really solid from what I've seen as well. Besides roamer, she's an amazing scout as well, she has such good movement and dm for that as well. Her demo is also super nuts as well.
Outside tf2, she's an amazing and kind person who is always a pleasure to talk with. Pick her up she's so great.