I think these 2 signings are a good move by Ernie.
If Krishna flops it won't cost us too much to have him on the books, and we can look at extending Lujic's contract if he turns out ok. If he doesn't there's still plenty of room left in the cap for another player to be brought in (Killen?)
If Krishna works out then we can ditch Lujic and have space in the cap for a midfielder.
Flaw: Finding the mystical players!