But Fraction/Aja is the combo that gave us Immortal Iron Fist, they work well together.
Not taking anything away from IIF, but....
1) Fraction has a much different perception in 2012 than he did in 2008. His perception has taken a hit among a sizable amount of fans. If someone isn't a fan of Fraction's latest work, why should past glories incite them to buy this book?
2) What happens if someone (like me) has become weary of Hawkeye (if this book is even going to star Hawkeye in the first place)? With all of the books he's in right now, he's not only suffering from the same issues that many Movie Characters suffer (the fact that nothing that happens to them will matter in the long run), but he could become the next Wolverine in terms of fan backlash. (And Wolverine used to be my favorite character)