General Idea to Improve TFT

When I sell a champ after a draft or champ select of sorts, and have my entire line or "hand" full of champs, the champ I chose from draft is played on the field. In other words, as an example, I now have five (5) champs on the field when i am supposed to have four (4). If i then sell a champ from "my hand", PLEASE RIOT do not take off my strongest champion from the field. I think this is "supposed to be random" but I find this always, at least for me, removes my strongest champion making lose a round or stage. This is really, really annoying. I'm tired of having to replace my champ. Also, there are even times this completely screws me up when i try to do last minute changes, sells, upgrades, etc.

After weeks of this, you would think that something would be done, but nothing has been done thus far to make it more "smart" and remove the weakest level one champ or the one star champion instead of removing the strongest champ i have on the field with one (1) or two (2) full built items. It is hard to explain, but I may record it later. Hopefully, someone else has noted this weird little thing.