Ferguson said: "Dimitar only played one pre-season game for Tottenham, followed by two tremendously difficult away games for us, and in those sorts of matches you are asking a lot for someone who’s just arrived at the club to perform.
"When we understand how good he is in terms of his movement and ability to lead the line, then we’ll get the best use out of him.
"You saw that in the second half against Bolton, when we used him more and some of his passes, control and balance were absolutely fantastic."
Berbatov is set to take his place in the starting line-up for tonight's Champions League game in Aalborg, although which forward line Ferguson will select is anyone's guess.
The Reds boss insists his side are under no