It's not so much that Love is a dud, he has skills, he has an uncanny awareness of knowing where the ball will come of the rim on a missed shot. He grabs rebounds by being in the right place at the right time. He can shoot the three very well if given the chance, and can also score in the post. He also passes well.
With the ball in LBJ's hand 75% of the time, he's not really looked for on the offensive end. Love needs a confidence transplant on his next team.
Lebron James knows the value of toughness, grit and defense, Lebron has it, in spades, and Love just ain't got it. He tried as hard as he could for Lebron, but never seemed to satisfy him.
Love is a max paid, complementary player. A good one, but still a complementary player. He won't lead you anywhere.