Bozza, when you are really bottoming out it's very hard to keep your admirable role-players on your list, because realistically you want to have a look at a bunch of younger players, meaning guys like de Boer probably weren't going to play much in 2017 and 2018. It's ok if they are young enough to be around for the next upswing, but MdB is 29, and so it was no guarantee he was going to be around for our next finals tilt.
Conca is only 3 years younger, but that's an important three years if our best years are going to be in the 2020-2023 range.