Those two are doable in a single day if you are a strong enough day hiker.
However, if you are going to do them separately, I do Langley via CL Trail up over Army Pass and Cirque from the Cottonwood Pass Trailhead. The latter involves a bit of cross country travel but everything is right in front of you and there is very little chance of geographic ambiguity.
This would give you two totally different looks rather than utilizing CL/NAP Trailhead for both hikes.