Looking at some A320 FDR data.
In cruise optimum altitude FL 370, 65T, pitch is +2,5 deg, AoA around 6 deg.
Descending in the FL300's, pitch -2 deg, AoA 4,5 deg
Descending in the FL200's pitch -1,5 deg AoA 3,5 deg
This clearly shows the acf moving significantly to the left
in the drag bucket on descend, but I guess we already knew that
XPM