Hoping I can beat the kansas city chiefs!

Hey, all! Huge Glove here. I coach Houston currently, I have experience coaching I think, north new york, and the next team my team is scheduled to play is the chiefs. My defensive unit is not very strong, and I hope I can win. I might be able to level up my DLs so I can get the ball back. Do you think that's possible? And how can I do that? Go into the player's profile and level up their defense? Thanks! Any answers will help!