It's not that simple to compare stats. Gallup didn't come back until halfway through this season, and he's still not fully recovered from his ACL tear and surgery from January 2022.
But if you truly want to compare stats, look at Noah Brown's yearly receiving stats during Amari's presence and after:
2022 | DAL | 43 | 555 | 12.9 | 51 | 3 |
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2021 | DAL | 16 | 184 | 11.5 | 27 | 0 |
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2020 | DAL | 14 | 154 | 11.0 | 20 | 0 |
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2018 | DAL | 5 | 54 | 10.8 | 22 | 0 |
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2017 | DAL | 4 | 33 | 8.3 | 14 | 0 |
Looks like Noah Brown has performed much better after Amari Cooper left than when he was here. Pretty much destroys your wishful thinking that Amari was helping our other receivers since Noah Brown himself was not able to get on the field before and produce much better results like today now that Amari has been gone this season. If Amari was truly helping Noah Brown during Amari's years as a Cowboy, why didn't Noah Brown perform better like he has this season?