He rarely has to do this due to the way the team is set up, though. Yesterday was a good example where others cover before Webster. In fact it worked so well that Webster was also available as an attacking outlet.
Slow, yet repeatedly gets into positions on the wing where he’s Cruyff turning one or two players and putting a pinpoint cross/assist in. For his slowness he does very well. One could argue that his slowness draws one or two players over to him and out of the box; a benefit of his lack of speed?