Tottenham Hotspur face a decision over Timo Werner’s future; has the RB Leipzig loanee done enough to earn a permanent stay in North London? That is the £15million question for Ange Postecoglou and Johan Lange this summer. Werner came in on loan from RB Leipzig in January, offering a boost to Postecoglou’s attacking options for the second half of the season. Werner has chipped in with two goals and three assists in 13 games and a £15million permanent option can be activated at the end of the campaign. £15million isn’t a huge fee and Werner has shown encouraging signs down Tottenham’s left flan…