Yes, I think you're right, his best surface is fast indoor, that serve is mighty but I think Krajan is looking long term. He puts Borna now to get some experience, they develop some bond, five years from now, when Borna is Cro #1 (see no other prospects and current crop will be done) Borna will return the favor and support him.
Do you think Krajan will remain DC captain for that many years?
It's just completely dumb. It's not like Coric would go away somewhere. He has enough time to get experience. To put him here instead of Pavic is just braindead. Makes them deserve the EuroAfrican zone.
And why would you think Cilic will be done in 5 years time?