Dunno if Wenger's still keen on Smalling given his interest in signing the man from Fulham and also in exchange for Vermaelen last season. But I'd seriously consider swapping him for Hector Bellerin in the upcoming transfer window provided we get suitable reinforcements for central defense. Only 19 years old so not exactly the most experienced option but he's been very impressive for their first team. Spanish U-team international, lightning quick for a defender, schooled the right way in La Masia, deft touch and has the talent to be a premier right back in the league. Given enough developmental time, a combo of him and Shaw on opposite flanks with their pace would be a nightmare to contain.
It's quite strange that there are some young, quality left-backs around Europe which could be signed for the right amount of money - the likes of Rodriguez, Kurzawa, Amavi, Gaya but not enough for the right side. Even the ones who were supposed to be big talents coming through - Jung, Arias, Danilo, Korb haven't progressed very well this season. Aurier has the talent but isn't featuring much for PSG. Maybe we could sniff out a bargain deal if they don't exercise a sign-on clause this summer.