North stand:
Move the police box, why do they need to physically see the stadium/pitch when all they are actually doing is controling and monitoring dozens of CCTV cameras? This could be housed elsewhere in the stadium.
Shift the scoreboard.
Lose the offices/rooms behind the cladding.
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I've only expereinced safe standing once - Spurs away, Trossard last minute. Safe standing ruined what would have been an absolute limbsathon when that went in, so bollocks to it. Yet more nanny state controling crap.