What's it all about when a sub comes on there is either an IPad thrust in front of him or reams of paper telling him what to do, surely tactics are discussed prior too the game. Surely a word in his ear is enough or is it because he can't understand English.

The correct answer to the IPad/ paper thing, is obviously instructions(paper) and equipment(IPad) for Pokemon Go around the ground. Simple really when using modern logic.

These footballers aren't very bright you know, they are basically showing them what colour shirts to pass to, which to tackle, what goal to attack and which to defend

Tactics are probably discussed prior to the game but not all games go to plan.

Saw the title and was gonna suggest securing all water tight doors.

Didn't Scotty's sidekick Agnew invent that?

Other Steve mate, Jobs.

If he's invented that I doubt he bother with coaching at Boro.