Level of the staff

Hi, I  have a question regarding the lvl of the staff, does it have any influence?

For example this two commercial managers:
http://igpmanager.com/play/?url=team-staff/94550
http://igpmanager.com/play/?url=team-staff/77402

The first one is lvl 5, but has a lot less experience, morale and charisma than the second one who is level 3.

Do they have any 'hidden stats'? Which one would you choose?

Generally speaking higher level staff are better than lower level staff

Until now i havent seen any disavantage in having lower level staff for the main 3 guys (technical director, designer and the other guy...).
On the other hand, on the skill level of the designers, mechanics and engineers, i've seen personally something "bad" happen (confusion reffueling on the pit box, i'd lost some secs on that pit because of low level staff).
So i would raise their level by training.