Myers is not a surprise. The only question is when will he be back.
Lueke’s demotion does clear up the battle for the final spot in the bullpen. With two spots open, it is assumed Jamey Wright will get one and Lueke was a strong candidate for the other spot.
But with Lueke gone, the final spot is probably down to Jeff Niemann or Brandon Gomes (if Niemann is traded), unless Andrew Friedman picks up another reliever before the season starts.
* The difference between Guyer/Lueke and the others is that Guyer and Lueke are on the 40-man roster. It requires the Rays to use a minor league option to send them to the minors. A team can only use options on a player in three different seasons.