Nico Gonzalez is not a £100million ($135.4m) midfielder. But, on the evidence of his Newcastle United debut, the £48m summer signing looks far more worthy of the centurion price tag than Sandro Tonali.Tottenham Hotspur looked to have pulled off a coup when they lured Tonali despite successive 17th-placed finishes, but Newcastle’s hierarchy planned for the transition and extracted maximum value.The £92.5m they are guaranteed for Tonali, rising to £100m with bonuses, has been reinvested — and paid for an entire new-look midfield. Nico, Sean Steur (£23m) and Aladji Bamba (£34m) cost £105m between them.Lewis Miley, meanwhile, who was magnificent once more during the 2-0 win over Tottenham, did not cost a penny. The 20-year-old and Nico formed an excellent partnership, outperforming Tonali as a duo despite having trained together just twice.The victory at the Tottenham Hotspur Stadium continued the encouraging (and impressive) start which Matthias Jaissle has enjoyed. He has registered two victories and a draw in all competitions, and is the first Newcastle coach to claim four or more points from his first two Premier League games in charge since Sam Allardyce in 2007-08 (also four).The expectation is that Jaissle will last longer than Allardyce’s half-season, though, given the German seems a far more comfortable stylistic fit. Yoane Wissa even described Jaissle as Newcastle’s “best signing” of a summer of significant change.Jaissle has been in position less than a month and is still hoping for an offensive addition before Tuesday’s deadline; a deal for Matias Fernandez-Pardo is proving difficult, given Lille’s reluctance to sell, while Stuttgart’s Bilal El Khannouss among the alternatives. And the German he has shown he can improve several players he has inherited and swiftly integrate new arrivals.