You're struggling so let me help you: The "supposition" is that Key would strongly consider playing at another school. The "evidence" are FACTS I presented to support said supposition.
Definitions are hard...
Let's review...
her health - You are speculating that her health issues would lead her to transfer? Wouldn't tie-ins to Knoxville/Nashville doctors and a Knoxville-based treatment program encourage her to stay in Knoxville? Do you have any actual evidence that supports that she is in any way unhappy with medical treatments at UT?
her family - Yes, she does have a family, just like any other player on our team. I guess I can't deny the fact that she has a family, but it is pretty flimsy support that she will transfer.
her home - Yes, she does have a home, just like any other player on our team. If this is valid evidence of future transfer, we'll need to update our recruiting strategy to roughly a 2-hour radius from Knoxville.
her relationship with her sister - Maybe her sis should transfer to Knoxville where she can get more than 5 min/g?
projected rosters - I don't follow, feels like you're grasping
the fact that she has honored her four year commitment to Kellie - That is a fact but it is not evidence of anything.
If you have some legit insight I'm all ears, but this is some extremely weak sauce. I've come to expect better from you, although negative leaning, usually your takes are well reasoned.