It's not that hard to overshadow Flipkens, Olaru and semi-retired players.Plus, Shvedova isn't overshadowing Vesnina, not really.
Flipkens is former #1 in juniors (with similar impressive juniors achievements with famous countrywomens Henin and Clijsters) and since 2002 there is big expectations for her to be next Belgian real deal, or next Belgian TOP10 (or at least TOP20), but than last season Yanina Wickmayer going from nowhere and doing everything which experts expect from Flipkens.
1989-born Olaru is noted like big prospect of worlds tennis, and she finished 2007 around #50 (for example currently best ranked 1992 girl is not even TOP150), and two years OLDER Dulgheru was totally unknown and till may of 2009 she never reach TOP200... but look now where is Dulgharu (seeded at Wimbledon) and (no)where is former biggest Romanian hope Olaru (before 2009 always compared only with Cirstea).
Dulgheru-Cirstea even better
Petkovic-Lisicki (due to Lisicki's injury, but still)
for Russians I'd pick Kulikova (if only she didn't get injured in every 2nd match).
Just for overtaking at WTA list is for sure not enough to say that one player overshadow
other, and You take two bad examples, because in terms of expectations Dulgheru is still in deep shadow
of last season RG quarterfinalist 1990-born young Cirstea, and similar case is between Lisicki and Petkovic. For Kulikova is too early to say that she already overshadow some of her famous compatriots, but very soon it will be case with some of semi-famous young (1986+) Russians with big expectations in past, like for example Douchevina or Vesnina (if they continued with stagnation and Regina with such big improvement).