Let me first start off by saying that Cecil is a Blue Jay. The Blue Jays are the best spot starters, especially with that hot offense behind them. For what ever reason, those Jays know how to hold a rotation spot until a starter returns from the DL (Tallet included).
Now, about Cecil. Cecil was a closer in college, so he tends to have that aggressive mind state on the mound. This probably explains why he walked none in his first start. While his six strikeouts may have been a bit high, you could probally expect 4 or 5 with a walk or two today. Cecil features a plus fastball (90-93mph) that showcases an extreme downward dive at the end of the pitch (similar to a splitter almost) that induces groundouts at a substantial rate. Just in case your wondering, on average he gets about 2.5 groundouts per flyball. However his slider (84-87 MPH) is probably his best pitch, and has the makings of an elite out pitch. His changeup and curveball leave a little to be desired, but they compliment his other pitches nicely and prove effective in setting up that filthy slider.
Cecil does come with a warning though. It has been said that his stamina is not where it should be, and that he tends to ware down towards the end of the season.
However, all indications for Cecil being used as spot start, especially today against the struggling A's, point toward success.