WATCH: How not to defend – an Aston Villa production starring the inimitable Jores Okore

Aston Villa's leaky defence from last season is as permeable as ever.

Prior to kick-off in Villa's EFL Cup clash with Luton Town, Villa's new owner revealed that his five-year plan for the club involved them becoming the top side in Europe by 2021. https://twitter.com/AVFCOfficial/status/763408523111895040 That, on the surface, seemed a pretty mad statement. It's made all the crazier when you look closely at where they are right now. Having invested in a Champions League winning manager, many expected Villa to look an entirely new team but, based on Wednesday night's evidence, they're still the same old Villa. A Jordan Ayew goal in the 13th minute suggested an easy night's work for Roberto Di Matteo but that wasn't accounting for defending like this. Luton clawed their way into a 2-1 lead and earned a corner in the 67th minute. A comedy of errors saw Villa fail to clear their lines and defender Jores Okore finally had enough with the scramble and decided to get his side back to the centre circle. What's the quickest way back to the centre circle? Passing the ball into one's own net, of course.

Oh dear oh dear villa, absolutely shocking defending yet again! 15 games without a win and counting.. #LutonTown pic.twitter.com/kRf3TMoaDC

— KnowFootball (@KnowFootballApp) August 10, 2016

GOAL! Luton 3-1 Aston Villa. Awful, awful stuff from Jores Okore! Live blog: https://t.co/kDJn1DuK0N https://t.co/jheMy6jKc9 — Sky Sports EFL (@SkySportsEFL) August 10, 2016

Jores Okore's own goal v. Luton Town. Dear, o dear! #AVFC #LTFC #EFLCup pic.twitter.com/dmqGzAV5Zz — HalfAGoal (@Half_A_Goal) August 10, 2016