Here is a comparison. Drive on I595 By FLL airport and look at the massive terminal improvements vs drive by I480 look at CLE. 40 years ago airports looked very similar. At FLL they have spent billions.
At CLE the entire airport terminal needs rebuIlt. How about getting rid of the IX Center and rebuilding it there which would also create a new traffic pattern which would fix the traffic congestion issue. We do have a new convention center downtown.