Watch the Using Triads to Play Changes: 2 online guitar lesson by Rob Garland from Chord Navigator: CAGED Triads
Select a different area of the neck to play the first chord of "Tapping On Devon's Door". Find a C-A-G-E-D shape such as the E shape, 3rd fret E string, C shape 5th fret A string, and A shape 3rd fret A string. Now let's look for smaller voicings inside those chords such as on just the D, G, and B strings. See how closely grouped these chords are. Again, I'll play some variations and incorporate several common tones.