Why does Dumbledore make Snape DADA teacher?

[justcarol67]

No: HPFGUIDX 158431

ghost_silver_wolf wrote:
> I believe that Dubledore's purpose for Snape would be finished by
> the end of the year.  Dumbledore knew about Voldermort's curse on
> the DADA job so why would he put Snape in that position if he didn't
> want to get rid of him, within a year?
> 
> Though it does bring up the question, why did Dumbledore hire
> Quirrell, Lockhart and Lupin, knowing he was putting them at risk?
> 
> 
>
Carol responds:
Why hire Snape for the DADA position? Perhaps because he's the best
man for the job--one who's familiar with the Dark Arts and can not
only teach the students what they need to know at this dangerous time,
including nonverbal defensive spells and alternate means of fighting
Dementors for those who can't cast a Patronus or can't bring a happy
memory to mind when faced with a Dementor, but can also perform the
nonteaching duties of the DADA teacher, such as removing curses from
necklaces and stopping the curse on Katie Bell from killing her?
Admittedly, Dumbledore couldn't anticipate those exact events, but
Snape had saved *him* from being killed by the curse on the ring and
he knew that the students and staff would be in unusual danger from
Dark Magic throughout the year because Voldemort was back (and, IMO,
Snape had told DD that Draco would be trying to kill him). Of course,
there were other reasons for hiring Snape as well--no other qualified
teachers available and a need to bring the old Potions Master,
Slughorn, back to Hogwarts--but I think that Dumbledore had been
waiting to appoint Snape to the DADA position until he really needed
him. He must have known that neither he nor Snape would last the year,
and it was time to put Snape to good use while he still could. And, of
course, there's the idea circulating around this list that he expected
Snape to go into deep cover as a Death Eater at the end of the year.

As for why Dumbledore would hire those other people, he had to have a
DADA teacher, and he had a specific need for Lupin (the old friend of
Sirius Black) and the real Moody (a former Auror) at the time he hired
them. And Quirrell wasn't evil the first year he taughr. He was just
seized with a mysterious urge to go off to Albania to learn more about
the Dark Arts. Oops. IMO, Dumbledore told each of those teachers that
it was a one-year appointment and/or that the post was jinxed. Can't
prove it, of course, but Crouch/Moody certainly intended to stay for
only one year, so the real Moody must have known he'd been hired only
because of the extra danger presented by the TWT.

Carol, who thinks that Snape is the best DADA teacher Harry ever
had--too bad Harry doesn't realize it