I'd like us to start looking at more flexible offensive players, like Son, rather than an out and out second striker to play backup with Kane. It's pretty evident that players that sit on the bench for too long start to rust and tend to make mistakes when brought on. So better to have someone that can play in multiple roles. Work as a striker when Kane cannot play, but can also play as an offensive midfielder/winger so even when Kane plays he can get playing time and this avoid the rust.