The best way to draft for people who aren't really comfortable is to pick out 4-5 heroes for each role beforehand, and make sure everyone know their positions, then you for each pick ask if they'd be comfortable to play the your top 1 suggestion, and draft that hero, otherwise you move on to the next~ etc.
Try to pick good heroes with strong lane control rather than heroes with synergies.
Try to pick good heroes with strong lane control rather than heroes with synergies.