I agree having opposite footed players is nice and I am usually a proponent of this...If pep continues to play Grealish on LM then it might be something to see what will hapeen if Savio LW + Grealish LM. Their attributions should work out together on paper. Especially against teams a little bit open in back. given how many games we have and Doku's injury history we will have opportunities to try these out.
But Id rather keep players on theit stronger side regardless.