I don't know either! (concerning how improved the unit will be)
However, what I do know is that an OL is only as good as its weakest link.
I remember back to the 2007 OL and thinking at the time that it had to be one of the weakest units Ferentz had fielded since maybe year one (perhaps, year two). Part of the deal for that unit was ...
- the unit lacked any veteran presence (Olsen was the old man of the group)
- Eubanks was undersized and a bit overwhelmed at C that year (credit to him for developing into a fine C by his SR year)
- Due to necessity dictated by personnel, we were forced to have a number of guys play from their ideal position ... and part of that may have also dealt with the learning curve, of determining where their best fit was. Namely, Calloway was at LT (he ended up a RT for us) and Olsen was at RT (his strongest position was OG).
- Just like folks malign DeJong ... folks spoke similarly about Calloway being a turnstile.
- We were really young/inexperienced at OG ... Bulaga was a TR FR playing at OG and Vandervelde was a RS FR playing at OG. The guys were talented ... but inexperienced.
What a difference a year made ... the 2008 OL was night-and-day different from the the '07 OL. Some of what helped was ...
- Bruggeman emerged as a SR leader at C. Had he been healthy ... he likely would have started in '07. Of course, with him being a new starter ... and having him snap to a new QB (Stanzi) ... you might remember that there were a TON of botched snap-exchanges that season. All the same ... the quality of toughness and blocking at the C-spot was enormously upgraded.
- Bulaga moved over to LT.
- Calloway moved over to RT.
- Olsen moved in to OG.
- Vandervelde remained at OG ... just keep on improving.
- By '08, Bruggeman and Olsen were SRs and Calloway was a RS JR.
- While having plenty of "issues" from the '07 season ... the unit properly leveraged its experience and improved from its mistakes.
- Lastly, by and large, the '08 OL enjoyed decent health - along with a bruising RB in Shonn Greene - which helped them gel through the season.
Anyhow, the transition from '07 to '08 allowed the unit to shore up deficiencies. Four of the guys starting in '08, started the prior year. So the solution wasn't an issue of replacing personnel. Rather, part of it was enjoying the luxury of being able to get guys in the positions where they fit best. Also, part of it was having guys improve a ton ... and just play at a really high level for us. Bulaga's play was money at LT ... even as early as the '08 season.
I think that having guys like Stephens and Dunker be a year older and more experienced ... I think that helps. I think that having a more settled Jones at C (or getting Feth at C) ... helps improve the situation at C. Richman has always been a fit at LT ... and he's finally a more veteran guy for us.
The addition of Feth and Parker, while guaranteeing nothing ... at least give the coaches more personnel options on the OL. It allows for them to find the right "fits." Colby, despite any hiccups he had last season, at the very least givens us more permutations to explore too. Hopefully he makes the improvements that he's capable of doing.
Anyhow, many facets of the transition from '07 to '08 seem to be present as we the page turn from '22 to '23. Hopefully, we also see a comparable outcome! (in terms of OL-performance)