It's always intimidating taking over from someone who was a success in their own right. Comparisons to this person's stellar performance can't be helped, and you may feel like your chance to shine may be over before it began. The danger here is in trying to replicate what this person did. Not only is it impossible; it's inadvisable, so stop trying to fill a predecessor's shoes. That was then, and now it's you. Resist the temptation to prove yourself and focus instead on the experience, talent, and new approach that you bring to the table. Given time, people will come to recognize you on your own merits.