For the fifth game in a row, Lewis Hall was an unused substitute for Newcastle United on Saturday. The 19-year-old remained on the bench as Newcastle United struggled against Bournemouth, while Joe White even came on to make his Toon debut ahead of Lewis Hall. It was a frustrating afternoon for the Magpies, and it will have been another frustrating afternoon for Hall. Once again, Newcastle’s left-hand side was exploited. Dan Burn struggled yet again, and it led to Bournemouth attacker Antoine Semenyo finding the net. But for all of Eddie Howe‘s troubles down the left, he continues to ignore Le…