Gliding is really bad in sports that are not about specially gliding like ice skating.
How can you position your body if your feet glide in an angle or you don't desire? You can't even begin to move in any direction since you're just sliding.
Zwill, I think that you are mixing up gliding and sliding. Gliding is when the player is moving so smoothly across the floor that it appears that he is just floating, that is, gliding. Sliding is is like a car drifting around a corner, that is, the tyres (shoes) are always planted to the road.