De Ceglie is much better forward than Molinaro, but defensively he sucks. You see what you want to see and you only say that he blocked the ball twice. Somehow you didn't see how he's completely lost on set pieces and leaves tons of spaces. Also, he's easily outmuscled.
But since everything i said about DC defensively also goes for Molinaro, i guess it's better to play DC because he's better offensively.
Personally, i'd go for a new LB instead of playing one of DC and Molinaro.
45 minutes is hardly enough to judge, and these defensive mistakes u speak off are the result of playing with an entirely new backline. He will undoubtedly position himself better when he learns the movement of his teammates and how they cover.
The only thing I noticed that I thought was noteworthy was that he didn't send his crosses way over and that he can cross with both feet (he cut in and switched to his right foot on 1 play). Otherwise, I havent made up my mind yet, and none of u should either. Ill judge the merit of all our signings in January.
As for Giovinco, yes he had 2 nice shots and a nice pass, but I prefer him deeper. Using him as an attacking mid plays to his strengths. More room to run for his speed and dribbling, stretching defense and allowing him to thread a pass, something he is very good at.