Absolutely, but when the master of Closutton struggles to get one or a few to go close I get this over riding feeling that maybe he just doesn't produce types suitable for Cheltenham. The one positive for Selma is that she is out of an Authorized mare. If the influence is on the dams side she could have plenty of stamina, but Zarak definitely tempers enthusiasm for me.
I also have reservations on a fair few, not just specifically for Cheltenham but also to produce an animal of high enough calabre to win a decent renewal of a G1 race. You will obviously get anomalies, especially in seasons where they are poor renewals of the races, like the years Slade Steel & Summerville Boy won their Supremes, both of their sires, Telescope & Sandmason, have produced bugger all really, and neither of them animals have gone on to do a whole heap since, albeit there is still time for Slade Steel to do so, but by and large he's looked more like a handicap plot than anything else as it stands!