Why will my 2008 QX56 not crank?

What is your question?

I recently had to change starter and battery. Car has run great for about 2 weeks. No check engine light or anything. Got ready to go yesterday morning and it will not crank. Sent it to shop and technician thinks it may be transmission. Is this a known issue?

What makes this problem better or worse?

Nothing

How long has your 2008 INFINITI QX56 had this problem?

Yesterday