For larger firms there are still a lot of unanswered questions about how manageable this OS is going to be. (slaw.ca)
There is a bitter sweetness in that truth, and perhaps a lot of unanswered questions about when and how. (attachmentparenting.org)
There were a number of limitations as well as a number of unanswered questions in this initial study but the results are still interesting to ponder. (childdevelopmentinfo.com)