Squad overhauls

Is it just me or does anyone else think its utterly ridiculous that we have to keep overhauling the entire first team and squad year after year?

I am delighted to see many of our signings coming in, and equally happy to see some depart too, but its just too much! How many mediocre players do we have to sign, release or sell before we stabilize? This approach has to end, we have to make better investments in high caliber players.