At the 9 this should be the goal depth wise:
1) Suarez quality player (peak Suarez obviously) as starter
2) Older striker (David Villa-like) who will still get plenty of matches
3) Braithwaite (or someone like him) who accepts limited playing time
3 players sharing 1 spot? A Suarez type of striker plays as much minutes as possible. Braithwaite would get 0 minutes.