Sane - Pretty much every game up until we played Arsenal at home or are we gonna rewrite history?
Sterling - According to Whoscored,com this season Sterling has played 54 games (3119 mins) he has scored 9 goals and has 9 assists. Kelechi has played 28 games (606 mins) and has scored 9 goals and has 3 assists. Now, I am not big on stats because I think they mask a lot with regards to actual performance levels (see David Silva), however if we are going to use them in this instance, I would suggest the stats state that Kelechi is far more effective than Sterling.
KDB has been playing all season, flitting between a deep-lying midfield role, a number 10 and a right winger. Navas has played over 30 games this season and has been absolute turd for the majority, the majority of which have not been at RB.
As for Kelechi missing chances, I am yet to see a striker yet that scores with every attempt. Every striker misses chances, including the very best. The difference is they get to come back the game after and try again, Kelechi gets to sit on the bench for the next 5 games.