Watch the Efficient Moves online guitar lesson by Brad Carlton from Chord Studies: Jazz Turnarounds Vol. 1
Again, we've got a I - vi - ii - V in F where we are using altered dominants for the vi and V chords. It's always important to consider what the upper voices in your chord choices are doing. Here we have the melody G - Bb - A - Ab in our upper voice on the second string. Think about your chord voicings like a four part horn section or vocal line - you'll notice that each voice is moving the least amount to get to the next chord.