After Tyler Lyons struggled in his last start, many were quick to speculate that the Cardinals might make a change in the rotation again, perhaps even bringing Michael Wacha back. However, the way they are handling their starting pitchers down at AAA Memphis tells a different story.
As reported by Derrick Goold, the Cardinals are shifting to a modified 6-man rotation down at Memphis to help monitor the innings for Wacha. In the meantime, the Cardinals other top prospect, Carlos Martinez, will stay on his normal 5 day rotation, to build up stamina to be ready in case he's needed at the major league level at the end of June.
Thus, its pretty obvious that, should Lyons falter, Martinez would be the next in line for the 5th starter spot.
The Cardinals have already done their part to keep Martinez' innings down by using him in the major league bullpen for a month. Plus, his visa delay at the start of the season also worked in his favor. Thus, between the majors and minors, Martine...