On Cleveland needing to trade Kevin Love.
There are 3 types of trades in the NBA.
1. Consolidation trades where you trade multiple pieces for less better singular pieces
2. Depth building trades: where you trade one great piece for multiple lesser pieces to help you fill out your roster
3. Lateral trades: where you trade players of equal value at different positions.
Kyrie is an elite PG and likely a top 20 player. You cant consolidate him into a better piece at the same position because there is only Westbrook, Harden, Curry and Wall that deserve consideration as possibly being betted PGs then Kyrie. If you have to trade him and aren't blowing it up then it makes more sense to look for a latteral trade (IE trade for an equivalent player at another position)
Currently big men in the NBA have low trade value so it makes sense to trade Kyrie for a big as the percieved difference between big man and guard value will further boost Kyrie's trade value and allow Cleveland to recieve suplimental assets.
Trading Kyrie for a big makes Kevin Love redundant. So Cleveland would have to trade Love or risk an unbalanced roster. Luckily for Cleveland Love has a high amount of trade value due to the Cavaliers championship 2 years ago. It also benefits Cleveland to split Love's value into multiple parts over Irving because NBA talent tends to exist on an exponential curve and thus trading Love for two or more middling players hurts less then trading Kyrie for 2 or more middling players.