Garnacho will need to raise his game

[Getty Images]Garnacho arrives at Aston Villa still with more promise than pedigree.Emery has shown faith in moving for the eight-cap Argentina international as he looks to rebuild his squad at Villa Park.With Rogers moving to Stamford Bridge for a club-record sale of £117m, the club needed to act.They have been fluid in the market, an important stance given their finances and the general nature of the window, and Garnacho - who also interested Roma - represented a good opportunity.Emery w