Absolutely. Also notice that he's gotten much better at piloting the TARDIS.

Better by certain standards, yes.

Ah - in that case, Melina would have been all too ready to jump in and help out.

If Lyra's more sort of a... diagnostician, for lack of a better term, would there be any way for her to discern that Melina's been deliberately messing with Ten above and beyond what she was tasked to do for the sake of extraction?