For the Cavs in this scenario, Mobley is playing better then expected for his rookie year and Love stays healthy Thus, Markkanen becomes more tradable.

For the Suns in this scenario, Saric remains out for the season and their current PF options are not preforming as the team hoped for.

Suns get Markkanen. He is a PF that can fill the offensive need to replace Saric.

Cavs get Saric, Smith, and a 1st. Saric is an asset they can trade next year. Smith is a C/PF they can develop as a backup for Allen. The 1st is an asset they can use or trade in the future.

Let me know your thoughts!