She'll be fine. My goodness. It's early in its run. "Just Let It Be...," as Madonna says.
Seriously!!!!! A second single off of any album takes time to grow, build up airplay, exposure and then more iTunes sales. Hung Up debuted so high because it was the first single and EVERYBODY bought it so there was a huge rush right out of the gate. Now that 1.3 million people have the CD they are probably not in such a rush to snatch Sorry up.... it's a good song and it actually debuted MUCH higher than I expected
I'm a huge Madonna fan and I'm happy with a 70 debut. Remember that "Hollywood", "Nothing Fails", and "Love Profusion" never even charted on the Hot100. I will be pleased if she gets another Top40. Anything else will be icing on the cake. I personally believe the song deserves Top10, but I'm not sure it will make it.
You yourself said the debut "sucks". OMG, I feel reeeeaally "sorry" for you, you're too stupid, WOW. 
