I agree with the above commenters who claimed that Steven Moffat deserves more credit for the Doctor Who renaissance.

When I think back on the high points of the RTD years, what comes to mind are episodes like The Doctor Dances, The Girl in the Fireplace, and Blink -- all written by Steven Moffat. His 2-parter in season 4 (Silence of the Library and Forest of the Dead) briefly reversed the trend of crapification that had been rapidly accelerating during Donna Noble's tenure as the Doctor's companion.

I can't wait to see what Moffat will bring to the series, especially now that he is working with the clean slate of a newly regenerated Doctor.