I though someone said that Holtby was a deep lying playmaker.
From ESPNFC:
Lewis Holtby
With an English father from Liverpool, the facts that Holtby grew up in and is registered (via his mother's nationality) to play for Germany were never really going to stand in the way of him eventually moving to the Premier League. He has openly stated his dream to play for Everton one day, and he has been heavily linked with a move to the Toffees as well as Spurs and Liverpool in recent weeks.
Holtby plays an attacking midfield role for Schalke and has been one of their more impressive performers in what has been a mixed season so far for his side, leading their charts for league assists with five, whilst only Huntelaar and Farfan have scored more goals than Holtby's three. A pass success rate of 80.8% is far from remarkable, but it does more to highlight the ambition of his play. He aims to take a game by the scruff of the neck from his preferred advanced playmaker position and drive his team forwards. Only Wolfsburg's Diego (nine) has completed more accurate through balls than Holtby (seven) in the Bundesliga this season, and his creativity is the main reason that he is so sought after.
He is, however, versatile in that he spent much of last season in a deep-lying playmaker position, whilst also featuring on both flanks on occasion. The range of positions he can occupy would be hugely beneficial to any of the teams he has been linked with and if he does realise his ambitions of playing in the English top flight, he would certainly add to the quality in the league.