Yeah so a relatively inexperienced manager for such a huge club.
I am not Giggs ' biggest fan but if we are again looking for a manager in 2 years Woodward might feel that there is hardly such a thing as "success guarantee" even if you hire a very experienced manager so why not try Giggs. But again for this to happen we will need a better team.
Zidane 's current team are experienced, have taken part in international tournaments and some of them have won them or at least gone far again and again, they have played at Madrid alone under so many managers so are more capable of adapting and they don't need much coaching. They are tactically already very good. For now at least they are fine and the worst which could happen is they end up 3rd and trophyless.
Whereas Giggs wouldn't find that at all here. We have a young and rather inexperienced squad. But win a few titles , make a couple of good signings, establish yourself again at the top as a club and then I would feel more comfortable with Giggs than if we hired him now.