Last season:
18 matches,
44 goals,
35 GD,
44pts
This season:
18 matches,
46 goals,
28 GD,
39pts
For all the excitement and hype all he has done is change the distribution of goals within the team. He hasn't added goals to the team.
And now we are more dependent on one single player rather than having multiple avenues to goal.
Perhaps more importantly he hasn't added points to the team, having a designated striker was supposed to be the difference in those big games where you might only get a couple of chances.