Absolutely right. We need to rid ourselves of this attitude that guys are "ok" or guys who multiple managers haven't seen as first choice players might somehow be better than the guys we have been playing.
If we look at what Gerrard did, he filled the squad with international footballers. Our centre half options for 55 were a better version of Goldson than we have now, Helander, a better version of Balogun than we have now and Jack Simpson. The latter is the only one who who any of current centre half's would displace.
Our striking options were Morelos, Roofe, Defoe, Itten, Stewart. Dessers would probably come after Defoe on that list.
Our main midfield options were a better Jack than we have now, Kamara, Davis, Arfield. None of our current midfielders get close to any of they 4 in ability.
We cannot allow ourselves to continually think guys like Souttar who clearly makes lots of mistakes, hasn't nailed a place down last two seasons and is generally thought of as "OK" can solve our issues by suddenly stepping up as a starter.