you can make a goal without 'assisting'
Also, Pogba has had fairly abysmal stats with far more minutes than lingard, and is the worlds most expensive player. Should we get rid of him?
the argument tends to come down to people watching him, and I would agree from watching him he isn't the most skillful player in the league, but
1) works exceptionally hard
2) is very quick, which combines well with 1)
3) none of the rest matters as mourinho is picking him and knows more than us about football
Thomas Muller isn't very quick or skillful or anything really. He plays a tactical role very well, and works exceptionally hard, with clever movement to boot. Lingard is a bit like him, and a bit like him is a late bloomer.
Park didn't put up amazing numbers, never looked like he had world class technical ability etc etc.
there are obviously thousands of examples where players like Lingard were very useful under good managers. Fellaini is another example, very effective player in the premiership for 7 or 8 years now. Still armchair fans question it while some of the greatest managers in premiership and world history pick him... laughable enough