I think the need a solid D or two, but try and find them, not many good ones available.
Anderson is decent,, not sure if he is good enough for playoff run, time will tell.
They for sure need a solid back up.
Problem is in todays NHL, they say it takes time, well you don't have it.
Look at what they sign for, you can't keep them all, you have a 2-4 year window.
then guys come and go, finding the guys coming are very important.
Pittsburg, Hawks, LA are teams who have managed this well.
Detroit did it for 20 years, now look at them.
Its not easy and you need a bit of luck upon the way.