To piggy back on what many of you have already said, Lou (unlike Collier) has to wait her turn. Getting hurt did not help. That injury cost her valuable games and playing time that she will never get back. Having a new coach does not help either.
Napheesa Collier (I love her first name) was lucky enough to go to a team that has an established coach, a winning culture, and 4 starters (Maya Moore, Rebekkah Brunson, Seimone Augustus, Karima Christmas-Kelly) that were not available to begin the season, which created a "perfect storm" for her to begin the season
as a starter, stay in the line up, and learn as she went along. Collier is averaging 35+ mpg.
Her 28 point performance in her first regular season game against the Chicago Sky gave her and her coaches confidence and affirmation that she could play at that level, and could be counted on to make significant contributions to the team this year.
Lou will get her opportunity in the coming weeks and years. Remember that
Kaleena Mosqueda-Lewis had the same thing happen to her her first two seasons under then head coach Jenny Boucek. KML couldn't get off the bench. Things have since opened up for her. Earlier this year she was starting. She's getting her minutes now. Lou is not going anywhere.
Gabby started 30 games her rookie season under departed coach/GM Amber Stocks. She averaged 11.4 pts /6.7 rpg.
All American
Brianna Turner can't get off the bench in Phoenix. Rookies don't always come in right away and make a BIG splash. Look at the year
Jordin Canada is having her 2nd year subbing in for an injured Sue Bird in Seattle. She didn't raise any eyebrows her rookie year.
Our All-Star
Kia Nurse, had to wait until her sophomore year for things to open up and blossom for her. Look at her now. Kia is taking FULL advantage of the opportunity afforded to her. She's become a starter, and is either the leading scorer, or among the top 2-3. each game. She was voted a starter this year. That fact along speaks for it self.
Don't worry about Lou, she'll become a valuable and respected member of the Sky in the years to come. All things in time. Right now, lets pray for her to get and stay healthy, and make the necessary adjustments to play and be productive at this level.