Squats and deads in the same day can be hard to recover from as you get stronger, keep that in mind as you progress, if you start to stall you probably need to move the deadlift to the third day or change the exercise. If youre goal is to become a better athlete, youre going to need implement some barbell lifts for the upper body as well, doesnt take much to add in a push press/ press and progress it, it can make a huge difference down the road.
Progress squats, upper push, upper pull, and a good glute /ham exercise and core, jump and sprint 2-3 times a week, and eat well. as long as you do those things youll be fine.