I suppose we all can argue till the cows come home about Giroud and his goalscoring record but if we're being honest, if he doesn't score, he doesn't contribute enough for someone leading the line. If you have been reading or watching Tuchel's comments about our attacking play, it's clear that he wants more than just someone putting the ball into the net from the person leading the line (e.g. his comments about Havertz last week).