I agree partly with sateeh. Changing the coach NOW might not have any effect, or even worsen our situation BUT if i were to decide, i'd really trying to convince lippi and if that man agreed, i'd risk it. A man of lippi's experience (coaching-experience AND Juve-experience) might be able to bring us to a new level.
With what juve looks like on paper, we should not be worrying about 4th place. I mean, we have the likes of Del Piero, Camoranesi, Buffon, whom i really (and objectively) consider world-class on their relative positions, and even if inter seemed unreachable (which i do not believe), they are not 13 points better. That's just a fact.
My fear is that we don't reach CL, and what happens next, only god knows; because we definately NEED the money from CL in order to be competitive the next years. We don't know what happens next with DP, Nedved, ... we have also camo and trez who are 30 yrs old (i think), but where are their replacements? i don't see any.
To get back to topic; i think we need a change in our management. I see a lot of secco-bashing here but maybe it's just the coach that needs to change. I mean without ranieri, we obviously wouldn't have bought tiago etc.
I say Get lippi, he's free, i'm pretty sure someone could convince him. He's the only one i'd let touch this juve at this moment, becuase only he has the experience with our squad (most of it). If we can't get Lippi, i'd say no change 'til the end of the season and let's hope we somehow reach 3rd place.